diff --git a/mysql-test/suite/tokudb.change_column/t/change_bin_rename.test b/mysql-test/suite/tokudb.change_column/t/change_bin_rename.test
index 025c1b1c7ec..c42aeb830a0 100644
--- a/mysql-test/suite/tokudb.change_column/t/change_bin_rename.test
+++ b/mysql-test/suite/tokudb.change_column/t/change_bin_rename.test
@@ -11,1272 +11,1526 @@ INSERT INTO t VALUES ('people');
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(2);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(2);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(3);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(3);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(4);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(4);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(5);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(5);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(6);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(6);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(7);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(7);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(8);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(8);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(9);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(9);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(10);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(10);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(11);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(11);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(12);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(12);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(13);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(13);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(14);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(14);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(15);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(15);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(16);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(16);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(17);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(17);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(18);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(18);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(19);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(19);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(20);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(20);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(21);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(21);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(22);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(22);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(23);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(23);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(24);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(24);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(25);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(25);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(26);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(26);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(27);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(27);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(28);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(28);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(29);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(29);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(30);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(30);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(31);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(31);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(32);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(32);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(33);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(33);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(34);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(34);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(35);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(35);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(36);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(36);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(37);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(37);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(38);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(38);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(39);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(39);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(40);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(40);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(41);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(41);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(42);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(42);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(43);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(43);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(44);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(44);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(45);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(45);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(46);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(46);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(47);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(47);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(48);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(48);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(49);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(49);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(50);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(50);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(51);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(51);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(52);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(52);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(53);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(53);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(54);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(54);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(55);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(55);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(56);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(56);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(57);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(57);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(58);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(58);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(59);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(59);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(60);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(60);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(61);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(61);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(62);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(62);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(63);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(63);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(64);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(64);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(65);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(65);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(66);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(66);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(67);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(67);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(68);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(68);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(69);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(69);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(70);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(70);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(71);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(71);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(72);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(72);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(73);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(73);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(74);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(74);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(75);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(75);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(76);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(76);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(77);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(77);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(78);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(78);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(79);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(79);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(80);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(80);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(81);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(81);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(82);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(82);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(83);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(83);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(84);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(84);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(85);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(85);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(86);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(86);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(87);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(87);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(88);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(88);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(89);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(89);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(90);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(90);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(91);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(91);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(92);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(92);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(93);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(93);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(94);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(94);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(95);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(95);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(96);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(96);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(97);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(97);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(98);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(98);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(99);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(99);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(100);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(100);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(101);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(101);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(102);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(102);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(103);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(103);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(104);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(104);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(105);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(105);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(106);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(106);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(107);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(107);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(108);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(108);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(109);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(109);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(110);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(110);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(111);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(111);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(112);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(112);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(113);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(113);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(114);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(114);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(115);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(115);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(116);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(116);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(117);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(117);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(118);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(118);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(119);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(119);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(120);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(120);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(121);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(121);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(122);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(122);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(123);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(123);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(124);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(124);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(125);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(125);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(126);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(126);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(127);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(127);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(128);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(128);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(129);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(129);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(130);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(130);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(131);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(131);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(132);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(132);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(133);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(133);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(134);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(134);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(135);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(135);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(136);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(136);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(137);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(137);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(138);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(138);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(139);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(139);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(140);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(140);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(141);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(141);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(142);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(142);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(143);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(143);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(144);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(144);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(145);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(145);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(146);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(146);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(147);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(147);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(148);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(148);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(149);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(149);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(150);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(150);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(151);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(151);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(152);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(152);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(153);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(153);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(154);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(154);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(155);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(155);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(156);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(156);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(157);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(157);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(158);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(158);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(159);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(159);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(160);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(160);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(161);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(161);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(162);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(162);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(163);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(163);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(164);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(164);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(165);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(165);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(166);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(166);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(167);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(167);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(168);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(168);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(169);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(169);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(170);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(170);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(171);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(171);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(172);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(172);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(173);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(173);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(174);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(174);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(175);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(175);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(176);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(176);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(177);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(177);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(178);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(178);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(179);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(179);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(180);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(180);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(181);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(181);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(182);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(182);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(183);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(183);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(184);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(184);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(185);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(185);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(186);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(186);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(187);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(187);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(188);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(188);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(189);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(189);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(190);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(190);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(191);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(191);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(192);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(192);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(193);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(193);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(194);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(194);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(195);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(195);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(196);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(196);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(197);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(197);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(198);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(198);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(199);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(199);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(200);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(200);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(201);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(201);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(202);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(202);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(203);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(203);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(204);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(204);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(205);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(205);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(206);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(206);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(207);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(207);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(208);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(208);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(209);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(209);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(210);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(210);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(211);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(211);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(212);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(212);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(213);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(213);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(214);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(214);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(215);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(215);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(216);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(216);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(217);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(217);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(218);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(218);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(219);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(219);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(220);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(220);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(221);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(221);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(222);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(222);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(223);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(223);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(224);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(224);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(225);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(225);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(226);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(226);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(227);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(227);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(228);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(228);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(229);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(229);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(230);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(230);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(231);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(231);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(232);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(232);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(233);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(233);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(234);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(234);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(235);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(235);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(236);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(236);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(237);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(237);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(238);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(238);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(239);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(239);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(240);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(240);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(241);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(241);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(242);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(242);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(243);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(243);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(244);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(244);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(245);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(245);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(246);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(246);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(247);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(247);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(248);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(248);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(249);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(249);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(250);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(250);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(251);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(251);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(252);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(252);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(253);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(253);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(254);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(254);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(255);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(255);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 DROP TABLE t;
 CREATE TABLE t (a BINARY(2));
@@ -1286,1272 +1540,1526 @@ INSERT INTO t VALUES ('people');
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(2);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(2);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(3);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(3);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(4);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(4);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(5);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(5);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(6);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(6);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(7);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(7);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(8);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(8);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(9);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(9);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(10);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(10);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(11);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(11);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(12);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(12);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(13);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(13);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(14);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(14);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(15);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(15);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(16);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(16);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(17);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(17);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(18);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(18);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(19);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(19);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(20);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(20);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(21);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(21);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(22);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(22);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(23);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(23);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(24);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(24);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(25);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(25);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(26);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(26);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(27);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(27);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(28);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(28);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(29);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(29);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(30);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(30);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(31);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(31);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(32);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(32);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(33);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(33);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(34);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(34);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(35);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(35);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(36);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(36);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(37);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(37);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(38);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(38);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(39);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(39);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(40);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(40);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(41);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(41);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(42);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(42);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(43);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(43);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(44);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(44);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(45);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(45);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(46);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(46);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(47);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(47);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(48);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(48);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(49);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(49);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(50);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(50);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(51);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(51);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(52);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(52);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(53);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(53);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(54);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(54);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(55);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(55);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(56);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(56);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(57);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(57);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(58);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(58);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(59);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(59);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(60);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(60);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(61);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(61);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(62);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(62);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(63);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(63);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(64);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(64);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(65);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(65);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(66);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(66);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(67);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(67);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(68);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(68);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(69);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(69);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(70);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(70);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(71);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(71);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(72);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(72);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(73);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(73);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(74);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(74);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(75);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(75);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(76);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(76);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(77);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(77);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(78);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(78);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(79);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(79);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(80);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(80);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(81);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(81);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(82);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(82);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(83);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(83);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(84);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(84);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(85);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(85);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(86);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(86);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(87);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(87);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(88);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(88);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(89);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(89);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(90);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(90);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(91);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(91);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(92);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(92);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(93);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(93);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(94);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(94);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(95);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(95);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(96);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(96);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(97);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(97);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(98);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(98);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(99);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(99);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(100);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(100);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(101);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(101);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(102);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(102);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(103);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(103);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(104);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(104);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(105);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(105);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(106);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(106);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(107);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(107);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(108);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(108);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(109);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(109);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(110);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(110);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(111);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(111);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(112);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(112);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(113);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(113);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(114);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(114);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(115);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(115);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(116);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(116);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(117);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(117);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(118);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(118);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(119);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(119);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(120);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(120);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(121);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(121);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(122);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(122);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(123);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(123);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(124);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(124);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(125);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(125);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(126);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(126);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(127);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(127);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(128);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(128);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(129);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(129);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(130);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(130);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(131);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(131);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(132);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(132);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(133);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(133);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(134);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(134);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(135);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(135);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(136);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(136);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(137);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(137);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(138);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(138);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(139);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(139);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(140);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(140);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(141);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(141);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(142);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(142);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(143);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(143);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(144);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(144);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(145);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(145);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(146);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(146);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(147);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(147);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(148);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(148);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(149);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(149);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(150);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(150);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(151);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(151);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(152);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(152);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(153);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(153);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(154);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(154);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(155);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(155);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(156);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(156);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(157);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(157);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(158);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(158);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(159);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(159);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(160);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(160);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(161);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(161);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(162);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(162);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(163);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(163);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(164);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(164);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(165);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(165);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(166);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(166);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(167);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(167);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(168);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(168);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(169);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(169);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(170);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(170);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(171);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(171);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(172);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(172);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(173);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(173);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(174);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(174);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(175);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(175);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(176);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(176);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(177);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(177);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(178);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(178);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(179);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(179);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(180);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(180);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(181);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(181);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(182);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(182);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(183);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(183);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(184);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(184);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(185);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(185);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(186);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(186);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(187);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(187);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(188);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(188);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(189);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(189);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(190);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(190);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(191);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(191);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(192);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(192);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(193);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(193);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(194);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(194);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(195);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(195);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(196);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(196);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(197);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(197);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(198);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(198);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(199);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(199);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(200);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(200);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(201);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(201);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(202);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(202);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(203);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(203);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(204);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(204);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(205);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(205);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(206);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(206);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(207);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(207);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(208);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(208);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(209);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(209);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(210);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(210);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(211);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(211);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(212);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(212);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(213);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(213);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(214);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(214);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(215);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(215);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(216);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(216);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(217);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(217);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(218);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(218);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(219);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(219);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(220);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(220);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(221);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(221);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(222);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(222);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(223);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(223);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(224);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(224);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(225);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(225);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(226);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(226);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(227);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(227);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(228);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(228);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(229);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(229);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(230);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(230);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(231);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(231);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(232);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(232);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(233);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(233);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(234);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(234);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(235);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(235);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(236);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(236);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(237);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(237);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(238);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(238);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(239);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(239);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(240);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(240);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(241);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(241);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(242);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(242);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(243);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(243);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(244);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(244);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(245);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(245);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(246);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(246);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(247);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(247);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(248);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(248);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(249);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(249);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(250);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(250);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(251);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(251);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(252);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(252);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(253);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(253);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(254);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(254);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(255);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(255);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 DROP TABLE t;
 CREATE TABLE t (a BINARY(3));
@@ -2564,1267 +3072,1520 @@ ALTER TABLE t CHANGE COLUMN a b BINARY(2);
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(3);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(3);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(4);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(4);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(5);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(5);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(6);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(6);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(7);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(7);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(8);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(8);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(9);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(9);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(10);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(10);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(11);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(11);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(12);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(12);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(13);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(13);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(14);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(14);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(15);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(15);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(16);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(16);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(17);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(17);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(18);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(18);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(19);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(19);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(20);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(20);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(21);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(21);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(22);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(22);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(23);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(23);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(24);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(24);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(25);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(25);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(26);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(26);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(27);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(27);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(28);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(28);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(29);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(29);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(30);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(30);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(31);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(31);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(32);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(32);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(33);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(33);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(34);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(34);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(35);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(35);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(36);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(36);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(37);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(37);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(38);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(38);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(39);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(39);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(40);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(40);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(41);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(41);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(42);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(42);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(43);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(43);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(44);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(44);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(45);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(45);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(46);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(46);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(47);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(47);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(48);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(48);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(49);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(49);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(50);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(50);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(51);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(51);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(52);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(52);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(53);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(53);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(54);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(54);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(55);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(55);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(56);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(56);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(57);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(57);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(58);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(58);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(59);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(59);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(60);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(60);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(61);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(61);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(62);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(62);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(63);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(63);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(64);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(64);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(65);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(65);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(66);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(66);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(67);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(67);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(68);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(68);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(69);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(69);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(70);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(70);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(71);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(71);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(72);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(72);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(73);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(73);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(74);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(74);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(75);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(75);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(76);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(76);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(77);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(77);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(78);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(78);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(79);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(79);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(80);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(80);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(81);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(81);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(82);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(82);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(83);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(83);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(84);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(84);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(85);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(85);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(86);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(86);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(87);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(87);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(88);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(88);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(89);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(89);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(90);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(90);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(91);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(91);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(92);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(92);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(93);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(93);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(94);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(94);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(95);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(95);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(96);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(96);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(97);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(97);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(98);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(98);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(99);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(99);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(100);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(100);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(101);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(101);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(102);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(102);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(103);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(103);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(104);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(104);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(105);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(105);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(106);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(106);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(107);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(107);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(108);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(108);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(109);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(109);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(110);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(110);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(111);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(111);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(112);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(112);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(113);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(113);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(114);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(114);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(115);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(115);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(116);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(116);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(117);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(117);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(118);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(118);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(119);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(119);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(120);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(120);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(121);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(121);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(122);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(122);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(123);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(123);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(124);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(124);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(125);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(125);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(126);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(126);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(127);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(127);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(128);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(128);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(129);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(129);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(130);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(130);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(131);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(131);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(132);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(132);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(133);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(133);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(134);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(134);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(135);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(135);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(136);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(136);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(137);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(137);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(138);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(138);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(139);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(139);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(140);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(140);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(141);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(141);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(142);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(142);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(143);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(143);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(144);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(144);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(145);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(145);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(146);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(146);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(147);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(147);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(148);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(148);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(149);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(149);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(150);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(150);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(151);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(151);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(152);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(152);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(153);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(153);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(154);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(154);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(155);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(155);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(156);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(156);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(157);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(157);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(158);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(158);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(159);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(159);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(160);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(160);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(161);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(161);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(162);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(162);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(163);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(163);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(164);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(164);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(165);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(165);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(166);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(166);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(167);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(167);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(168);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(168);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(169);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(169);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(170);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(170);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(171);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(171);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(172);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(172);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(173);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(173);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(174);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(174);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(175);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(175);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(176);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(176);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(177);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(177);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(178);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(178);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(179);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(179);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(180);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(180);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(181);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(181);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(182);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(182);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(183);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(183);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(184);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(184);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(185);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(185);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(186);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(186);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(187);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(187);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(188);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(188);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(189);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(189);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(190);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(190);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(191);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(191);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(192);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(192);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(193);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(193);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(194);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(194);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(195);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(195);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(196);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(196);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(197);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(197);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(198);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(198);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(199);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(199);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(200);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(200);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(201);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(201);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(202);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(202);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(203);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(203);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(204);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(204);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(205);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(205);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(206);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(206);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(207);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(207);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(208);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(208);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(209);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(209);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(210);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(210);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(211);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(211);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(212);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(212);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(213);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(213);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(214);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(214);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(215);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(215);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(216);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(216);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(217);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(217);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(218);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(218);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(219);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(219);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(220);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(220);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(221);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(221);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(222);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(222);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(223);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(223);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(224);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(224);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(225);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(225);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(226);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(226);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(227);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(227);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(228);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(228);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(229);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(229);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(230);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(230);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(231);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(231);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(232);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(232);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(233);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(233);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(234);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(234);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(235);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(235);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(236);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(236);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(237);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(237);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(238);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(238);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(239);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(239);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(240);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(240);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(241);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(241);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(242);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(242);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(243);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(243);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(244);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(244);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(245);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(245);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(246);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(246);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(247);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(247);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(248);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(248);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(249);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(249);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(250);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(250);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(251);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(251);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(252);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(252);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(253);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(253);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(254);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(254);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(255);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(255);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 DROP TABLE t;
 CREATE TABLE t (a BINARY(4));
@@ -3840,1262 +4601,1514 @@ ALTER TABLE t CHANGE COLUMN a b BINARY(3);
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(4);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(4);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(5);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(5);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(6);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(6);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(7);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(7);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(8);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(8);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(9);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(9);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(10);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(10);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(11);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(11);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(12);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(12);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(13);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(13);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(14);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(14);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(15);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(15);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(16);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(16);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(17);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(17);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(18);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(18);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(19);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(19);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(20);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(20);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(21);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(21);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(22);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(22);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(23);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(23);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(24);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(24);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(25);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(25);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(26);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(26);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(27);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(27);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(28);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(28);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(29);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(29);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(30);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(30);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(31);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(31);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(32);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(32);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(33);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(33);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(34);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(34);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(35);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(35);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(36);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(36);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(37);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(37);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(38);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(38);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(39);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(39);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(40);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(40);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(41);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(41);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(42);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(42);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(43);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(43);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(44);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(44);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(45);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(45);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(46);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(46);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(47);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(47);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(48);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(48);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(49);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(49);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(50);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(50);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(51);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(51);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(52);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(52);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(53);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(53);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(54);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(54);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(55);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(55);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(56);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(56);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(57);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(57);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(58);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(58);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(59);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(59);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(60);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(60);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(61);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(61);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(62);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(62);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(63);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(63);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(64);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(64);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(65);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(65);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(66);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(66);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(67);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(67);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(68);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(68);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(69);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(69);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(70);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(70);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(71);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(71);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(72);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(72);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(73);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(73);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(74);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(74);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(75);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(75);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(76);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(76);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(77);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(77);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(78);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(78);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(79);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(79);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(80);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(80);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(81);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(81);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(82);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(82);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(83);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(83);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(84);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(84);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(85);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(85);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(86);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(86);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(87);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(87);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(88);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(88);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(89);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(89);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(90);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(90);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(91);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(91);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(92);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(92);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(93);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(93);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(94);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(94);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(95);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(95);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(96);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(96);
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 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(97);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(97);
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 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(98);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(98);
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 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(99);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(99);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(100);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(100);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(101);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(101);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(102);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(102);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(103);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(103);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(104);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(104);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(105);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(105);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(106);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(106);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(107);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(107);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(108);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(108);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(109);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(109);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(110);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(110);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(111);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(111);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(112);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(112);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(113);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(113);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(114);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(114);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(115);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(115);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(116);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(116);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(117);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(117);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(118);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(118);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(119);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(119);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(120);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(120);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(121);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(121);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(122);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(122);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(123);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(123);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(124);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(124);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(125);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(125);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(126);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(126);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(127);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(127);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(128);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(128);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(129);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(129);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(130);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(130);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(131);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(131);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(132);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(132);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(133);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(133);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(134);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(134);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(135);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(135);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(136);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(136);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(137);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(137);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(138);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(138);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(139);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(139);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(140);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(140);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(141);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(141);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(142);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(142);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(143);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(143);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(144);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(144);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(145);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(145);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(146);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(146);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(147);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(147);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(148);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(148);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(149);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(149);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(150);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(150);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(151);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(151);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(152);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(152);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(153);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(153);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(154);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(154);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(155);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(155);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(156);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(156);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(157);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(157);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(158);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(158);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(159);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(159);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(160);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(160);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(161);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(161);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(162);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(162);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(163);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(163);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(164);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(164);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(165);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(165);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(166);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(166);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(167);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(167);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(168);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(168);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(169);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(169);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(170);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(170);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(171);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(171);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(172);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(172);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(173);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(173);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(174);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(174);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(175);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(175);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(176);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(176);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(177);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(177);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(178);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(178);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(179);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(179);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(180);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(180);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(181);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(181);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(182);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(182);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(183);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(183);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(184);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(184);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(185);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(185);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(186);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(186);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(187);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(187);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(188);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(188);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(189);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(189);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(190);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(190);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(191);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(191);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(192);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(192);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(193);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(193);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(194);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(194);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(195);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(195);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(196);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(196);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(197);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(197);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(198);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(198);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(199);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(199);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(200);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(200);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(201);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(201);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(202);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(202);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(203);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(203);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(204);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(204);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(205);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(205);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(206);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(206);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(207);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(207);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(208);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(208);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(209);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(209);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(210);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(210);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(211);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(211);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(212);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(212);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(213);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(213);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(214);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(214);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(215);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(215);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(216);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(216);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(217);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(217);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(218);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(218);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(219);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(219);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(220);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(220);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(221);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(221);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(222);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(222);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(223);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(223);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(224);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(224);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(225);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(225);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(226);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(226);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(227);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(227);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(228);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(228);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(229);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(229);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(230);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(230);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(231);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(231);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(232);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(232);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(233);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(233);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(234);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(234);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(235);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(235);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(236);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(236);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(237);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(237);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(238);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(238);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(239);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(239);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(240);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(240);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(241);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(241);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(242);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(242);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(243);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(243);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(244);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(244);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(245);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(245);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(246);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(246);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(247);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(247);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(248);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(248);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(249);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(249);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(250);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(250);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(251);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(251);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(252);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(252);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(253);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(253);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(254);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(254);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(255);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(255);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 DROP TABLE t;
 CREATE TABLE t (a BINARY(5));
@@ -5114,1257 +6127,1508 @@ ALTER TABLE t CHANGE COLUMN a b BINARY(4);
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(5);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(5);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(6);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(6);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(7);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(7);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(8);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(8);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(9);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(9);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(10);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(10);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(11);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(11);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(12);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(12);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(13);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(13);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(14);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(14);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(15);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(15);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(16);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(16);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(17);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(17);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(18);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(18);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(19);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(19);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(20);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(20);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(21);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(21);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(22);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(22);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(23);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(23);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(24);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(24);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(25);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(25);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(26);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(26);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(27);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(27);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(28);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(28);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(29);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(29);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(30);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(30);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(31);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(31);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(32);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(32);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(33);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(33);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(34);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(34);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(35);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(35);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(36);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(36);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(37);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(37);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(38);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(38);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(39);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(39);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(40);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(40);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(41);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(41);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(42);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(42);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(43);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(43);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(44);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(44);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(45);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(45);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(46);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(46);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(47);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(47);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(48);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(48);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(49);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(49);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(50);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(50);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(51);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(51);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(52);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(52);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(53);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(53);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(54);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(54);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(55);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(55);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(56);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(56);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(57);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(57);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(58);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(58);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(59);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(59);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(60);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(60);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(61);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(61);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(62);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(62);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(63);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(63);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(64);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(64);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(65);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(65);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(66);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(66);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(67);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(67);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(68);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(68);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(69);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(69);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(70);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(70);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(71);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(71);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(72);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(72);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(73);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(73);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(74);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(74);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(75);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(75);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(76);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(76);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(77);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(77);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(78);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(78);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(79);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(79);
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 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(80);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(80);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(81);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(81);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(82);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(82);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(83);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(83);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(84);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(84);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(85);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(85);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(86);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(86);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(87);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(87);
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 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(88);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(88);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(89);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(89);
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 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(90);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(90);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(91);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(91);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(92);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(92);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(93);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(93);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(94);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(94);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(95);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(95);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(96);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(96);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(97);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(97);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(98);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(98);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(99);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(99);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(100);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(100);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(101);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(101);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(102);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(102);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(103);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(103);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(104);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(104);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(105);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(105);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(106);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(106);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(107);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(107);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(108);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(108);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(109);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(109);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(110);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(110);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(111);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(111);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(112);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(112);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(113);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(113);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(114);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(114);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(115);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(115);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(116);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(116);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(117);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(117);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(118);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(118);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(119);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(119);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(120);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(120);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(121);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(121);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(122);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(122);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(123);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(123);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(124);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(124);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(125);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(125);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(126);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(126);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(127);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(127);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(128);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(128);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(129);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(129);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(130);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(130);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(131);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(131);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(132);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(132);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(133);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(133);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(134);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(134);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(135);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(135);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(136);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(136);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(137);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(137);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(138);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(138);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(139);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(139);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(140);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(140);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(141);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(141);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(142);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(142);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(143);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(143);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(144);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(144);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(145);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(145);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(146);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(146);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(147);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(147);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(148);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(148);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(149);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(149);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(150);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(150);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(151);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(151);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(152);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(152);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(153);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(153);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(154);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(154);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(155);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(155);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(156);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(156);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(157);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(157);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(158);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(158);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(159);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(159);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(160);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(160);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(161);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(161);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(162);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(162);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(163);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(163);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(164);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(164);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(165);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(165);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(166);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(166);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(167);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(167);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(168);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(168);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(169);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(169);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(170);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(170);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(171);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(171);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(172);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(172);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(173);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(173);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(174);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(174);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(175);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(175);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(176);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(176);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(177);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(177);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(178);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(178);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(179);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(179);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(180);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(180);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(181);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(181);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(182);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(182);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(183);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(183);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(184);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(184);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(185);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(185);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(186);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(186);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(187);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(187);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(188);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(188);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(189);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(189);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(190);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(190);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(191);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(191);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(192);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(192);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(193);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(193);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(194);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(194);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(195);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(195);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(196);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(196);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(197);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(197);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(198);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(198);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(199);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(199);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(200);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(200);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(201);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(201);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(202);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(202);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(203);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(203);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(204);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(204);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(205);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(205);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(206);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(206);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(207);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(207);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(208);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(208);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(209);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(209);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(210);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(210);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(211);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(211);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(212);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(212);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(213);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(213);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(214);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(214);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(215);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(215);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(216);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(216);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(217);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(217);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(218);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(218);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(219);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(219);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(220);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(220);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(221);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(221);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(222);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(222);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(223);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(223);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(224);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(224);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(225);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(225);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(226);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(226);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(227);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(227);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(228);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(228);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(229);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(229);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(230);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(230);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(231);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(231);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(232);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(232);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(233);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(233);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(234);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(234);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(235);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(235);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(236);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(236);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(237);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(237);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(238);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(238);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(239);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(239);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(240);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(240);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(241);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(241);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(242);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(242);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(243);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(243);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(244);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(244);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(245);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(245);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(246);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(246);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(247);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(247);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(248);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(248);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(249);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(249);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(250);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(250);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(251);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(251);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(252);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(252);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(253);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(253);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(254);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(254);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(255);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(255);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 DROP TABLE t;
 CREATE TABLE t (a BINARY(6));
@@ -6386,1252 +7650,1502 @@ ALTER TABLE t CHANGE COLUMN a b BINARY(5);
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(6);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(6);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(7);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(7);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(8);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(8);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(9);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(9);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(10);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(10);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(11);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(11);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(12);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(12);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(13);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(13);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(14);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(14);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(15);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(15);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(16);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(16);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(17);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(17);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(18);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(18);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(19);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(19);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(20);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(20);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(21);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(21);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(22);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(22);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(23);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(23);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(24);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(24);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(25);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(25);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(26);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(26);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(27);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(27);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(28);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(28);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(29);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(29);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(30);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(30);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(31);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(31);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(32);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(32);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(33);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(33);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(34);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(34);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(35);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(35);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(36);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(36);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(37);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(37);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(38);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(38);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(39);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(39);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(40);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(40);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(41);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(41);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(42);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(42);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(43);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(43);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(44);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(44);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(45);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(45);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(46);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(46);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(47);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(47);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(48);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(48);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(49);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(49);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(50);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(50);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(51);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(51);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(52);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(52);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(53);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(53);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(54);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(54);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(55);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(55);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(56);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(56);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(57);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(57);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(58);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(58);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(59);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(59);
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 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(60);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(60);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(61);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(61);
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 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(62);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(62);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(63);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(63);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(64);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(64);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(65);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(65);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(66);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(66);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(67);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(67);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(68);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(68);
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 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(69);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(69);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(70);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(70);
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 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(71);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(71);
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 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(72);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(72);
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 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(73);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(73);
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 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(74);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(74);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(75);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(75);
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 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(76);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(76);
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 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(77);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(77);
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 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(78);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(78);
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 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(79);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(79);
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 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(80);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(80);
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 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(81);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(81);
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 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(82);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(82);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(83);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(83);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(84);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(84);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(85);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(85);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(86);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(86);
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 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(87);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(87);
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 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(88);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(88);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(89);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(89);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(90);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(90);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(91);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(91);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(92);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(92);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(93);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(93);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(94);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(94);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(95);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(95);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(96);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(96);
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 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(97);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(97);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(98);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(98);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(99);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(99);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(100);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(100);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(101);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(101);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(102);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(102);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(103);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(103);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(104);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(104);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(105);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(105);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(106);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(106);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(107);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(107);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(108);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(108);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(109);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(109);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(110);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(110);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(111);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(111);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(112);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(112);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(113);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(113);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(114);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(114);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(115);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(115);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(116);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(116);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(117);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(117);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(118);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(118);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(119);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(119);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(120);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(120);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(121);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(121);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(122);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(122);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(123);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(123);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(124);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(124);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(125);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(125);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(126);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(126);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(127);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(127);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(128);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(128);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(129);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(129);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(130);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(130);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(131);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(131);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(132);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(132);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(133);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(133);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(134);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(134);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(135);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(135);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(136);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(136);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(137);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(137);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(138);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(138);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(139);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(139);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(140);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(140);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(141);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(141);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(142);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(142);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(143);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(143);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(144);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(144);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(145);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(145);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(146);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(146);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(147);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(147);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(148);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(148);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(149);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(149);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(150);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(150);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(151);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(151);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(152);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(152);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(153);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(153);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(154);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(154);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(155);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(155);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(156);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(156);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(157);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(157);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(158);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(158);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(159);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(159);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(160);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(160);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(161);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(161);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(162);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(162);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(163);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(163);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(164);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(164);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(165);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(165);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(166);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(166);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(167);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(167);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(168);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(168);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(169);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(169);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(170);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(170);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(171);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(171);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(172);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(172);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(173);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(173);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(174);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(174);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(175);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(175);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(176);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(176);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(177);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(177);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(178);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(178);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(179);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(179);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(180);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(180);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(181);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(181);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(182);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(182);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(183);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(183);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(184);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(184);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(185);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(185);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(186);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(186);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(187);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(187);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(188);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(188);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(189);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(189);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(190);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(190);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(191);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(191);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(192);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(192);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(193);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(193);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(194);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(194);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(195);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(195);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(196);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(196);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(197);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(197);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(198);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(198);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(199);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(199);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(200);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(200);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(201);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(201);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(202);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(202);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(203);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(203);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(204);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(204);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(205);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(205);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(206);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(206);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(207);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(207);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(208);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(208);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(209);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(209);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(210);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(210);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(211);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(211);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(212);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(212);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(213);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(213);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(214);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(214);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(215);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(215);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(216);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(216);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(217);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(217);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(218);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(218);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(219);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(219);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(220);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(220);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(221);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(221);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(222);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(222);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(223);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(223);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(224);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(224);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(225);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(225);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(226);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(226);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(227);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(227);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(228);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(228);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(229);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(229);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(230);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(230);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(231);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(231);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(232);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(232);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(233);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(233);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(234);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(234);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(235);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(235);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(236);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(236);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(237);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(237);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(238);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(238);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(239);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(239);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(240);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(240);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(241);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(241);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(242);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(242);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(243);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(243);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(244);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(244);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(245);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(245);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(246);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(246);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(247);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(247);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(248);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(248);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(249);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(249);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(250);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(250);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(251);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(251);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(252);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(252);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(253);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(253);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(254);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(254);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(255);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(255);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 DROP TABLE t;
 CREATE TABLE t (a BINARY(7));
@@ -7656,1247 +9170,1496 @@ ALTER TABLE t CHANGE COLUMN a b BINARY(6);
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(7);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(7);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(8);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(8);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(9);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(9);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(10);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(10);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(11);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(11);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(12);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(12);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(13);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(13);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(14);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(14);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(15);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(15);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(16);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(16);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(17);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(17);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(18);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(18);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(19);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(19);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(20);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(20);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(21);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(21);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(22);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(22);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(23);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(23);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(24);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(24);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(25);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(25);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(26);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(26);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(27);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(27);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(28);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(28);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(29);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(29);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(30);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(30);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(31);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(31);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(32);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(32);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(33);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(33);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(34);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(34);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(35);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(35);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(36);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(36);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(37);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(37);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(38);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(38);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(39);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(39);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(40);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(40);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(41);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(41);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(42);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(42);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(43);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(43);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(44);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(44);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(45);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(45);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(46);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(46);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(47);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(47);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(48);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(48);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(49);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(49);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(50);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(50);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(51);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(51);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(52);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(52);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(53);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(53);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(54);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(54);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(55);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(55);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(56);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(56);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(57);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(57);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(58);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(58);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(59);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(59);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(60);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(60);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(61);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(61);
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 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(62);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(62);
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 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(63);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(63);
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 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(64);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(64);
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 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(65);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(65);
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 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(66);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(66);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(67);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(67);
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 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(68);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(68);
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 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(69);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(69);
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 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(70);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(70);
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 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(71);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(71);
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 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(72);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(72);
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 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(73);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(73);
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 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(74);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(74);
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 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(75);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(75);
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 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(76);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(76);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(77);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(77);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(78);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(78);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(79);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(79);
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 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(80);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(80);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(81);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(81);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(82);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(82);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(83);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(83);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(84);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(84);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(85);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(85);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(86);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(86);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(87);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(87);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(88);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(88);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(89);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(89);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(90);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(90);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(91);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(91);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(92);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(92);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(93);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(93);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(94);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(94);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(95);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(95);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(96);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(96);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(97);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(97);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(98);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(98);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(99);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(99);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(100);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(100);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(101);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(101);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(102);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(102);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(103);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(103);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(104);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(104);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(105);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(105);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(106);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(106);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(107);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(107);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(108);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(108);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(109);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(109);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(110);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(110);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(111);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(111);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(112);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(112);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(113);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(113);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(114);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(114);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(115);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(115);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(116);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(116);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(117);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(117);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(118);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(118);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(119);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(119);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(120);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(120);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(121);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(121);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(122);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(122);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(123);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(123);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(124);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(124);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(125);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(125);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(126);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(126);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(127);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(127);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(128);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(128);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(129);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(129);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(130);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(130);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(131);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(131);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(132);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(132);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(133);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(133);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(134);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(134);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(135);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(135);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(136);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(136);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(137);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(137);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(138);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(138);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(139);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(139);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(140);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(140);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(141);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(141);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(142);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(142);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(143);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(143);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(144);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(144);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(145);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(145);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(146);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(146);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(147);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(147);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(148);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(148);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(149);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(149);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(150);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(150);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(151);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(151);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(152);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(152);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(153);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(153);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(154);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(154);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(155);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(155);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(156);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(156);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(157);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(157);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(158);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(158);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(159);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(159);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(160);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(160);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(161);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(161);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(162);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(162);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(163);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(163);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(164);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(164);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(165);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(165);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(166);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(166);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(167);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(167);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(168);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(168);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(169);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(169);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(170);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(170);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(171);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(171);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(172);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(172);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(173);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(173);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(174);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(174);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(175);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(175);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(176);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(176);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(177);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(177);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(178);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(178);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(179);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(179);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(180);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(180);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(181);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(181);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(182);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(182);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(183);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(183);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(184);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(184);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(185);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(185);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(186);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(186);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(187);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(187);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(188);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(188);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(189);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(189);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(190);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(190);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(191);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(191);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(192);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(192);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(193);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(193);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(194);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(194);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(195);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(195);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(196);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(196);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(197);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(197);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(198);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(198);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(199);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(199);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(200);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(200);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(201);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(201);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(202);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(202);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(203);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(203);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(204);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(204);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(205);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(205);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(206);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(206);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(207);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(207);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(208);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(208);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(209);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(209);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(210);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(210);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(211);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(211);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(212);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(212);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(213);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(213);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(214);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(214);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(215);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(215);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(216);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(216);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(217);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(217);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(218);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(218);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(219);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(219);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(220);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(220);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(221);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(221);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(222);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(222);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(223);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(223);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(224);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(224);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(225);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(225);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(226);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(226);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(227);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(227);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(228);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(228);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(229);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(229);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(230);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(230);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(231);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(231);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(232);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(232);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(233);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(233);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(234);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(234);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(235);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(235);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(236);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(236);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(237);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(237);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(238);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(238);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(239);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(239);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(240);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(240);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(241);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(241);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(242);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(242);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(243);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(243);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(244);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(244);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(245);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(245);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(246);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(246);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(247);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(247);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(248);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(248);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(249);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(249);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(250);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(250);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(251);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(251);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(252);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(252);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(253);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(253);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(254);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(254);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(255);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(255);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 DROP TABLE t;
 CREATE TABLE t (a BINARY(8));
@@ -8924,1242 +10687,1490 @@ ALTER TABLE t CHANGE COLUMN a b BINARY(7);
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(8);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(8);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(9);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(9);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(10);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(10);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(11);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(11);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(12);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(12);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(13);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(13);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(14);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(14);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(15);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(15);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(16);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(16);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(17);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(17);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(18);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(18);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(19);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(19);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(20);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(20);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(21);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(21);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(22);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(22);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(23);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(23);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(24);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(24);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(25);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(25);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(26);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(26);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(27);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(27);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(28);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(28);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(29);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(29);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(30);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(30);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(31);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(31);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(32);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(32);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(33);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(33);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(34);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(34);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(35);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(35);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(36);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(36);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(37);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(37);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(38);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(38);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(39);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(39);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(40);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(40);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(41);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(41);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(42);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(42);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(43);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(43);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(44);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(44);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(45);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(45);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(46);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(46);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(47);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(47);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(48);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(48);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(49);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(49);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(50);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(50);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(51);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(51);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(52);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(52);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(53);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(53);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(54);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(54);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(55);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(55);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(56);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(56);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(57);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(57);
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 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(58);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(58);
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 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(59);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(59);
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 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(60);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(60);
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 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(61);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(61);
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 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(62);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(62);
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 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(63);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(63);
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 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(64);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(64);
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 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(65);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(65);
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 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(66);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(66);
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 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(67);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(67);
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 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(68);
-SELECT * FROM t,tt where t.b = tt.a;
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 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(69);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(69);
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 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(70);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(70);
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 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(71);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(71);
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 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(72);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(72);
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 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(73);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(73);
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 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(74);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(74);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(75);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(75);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(76);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(76);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(77);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(77);
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 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(78);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(78);
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 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(79);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(79);
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 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(80);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(80);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(81);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(81);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(82);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(82);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(83);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(83);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(84);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(84);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(85);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(85);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(86);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(86);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(87);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(87);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(88);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(88);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(89);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(89);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(90);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(90);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(91);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(91);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(92);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(92);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(93);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(93);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(94);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(94);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(95);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(95);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(96);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(96);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(97);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(97);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(98);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(98);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(99);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(99);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(100);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(100);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(101);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(101);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(102);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(102);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(103);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(103);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(104);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(104);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(105);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(105);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(106);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(106);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(107);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(107);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(108);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(108);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(109);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(109);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(110);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(110);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(111);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(111);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(112);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(112);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(113);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(113);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(114);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(114);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(115);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(115);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(116);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(116);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(117);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(117);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(118);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(118);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(119);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(119);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(120);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(120);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(121);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(121);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(122);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(122);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(123);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(123);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(124);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(124);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(125);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(125);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(126);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(126);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(127);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(127);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(128);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(128);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(129);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(129);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(130);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(130);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(131);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(131);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(132);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(132);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(133);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(133);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(134);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(134);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(135);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(135);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(136);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(136);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(137);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(137);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(138);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(138);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(139);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(139);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(140);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(140);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(141);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(141);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(142);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(142);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(143);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(143);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(144);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(144);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(145);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(145);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(146);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(146);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(147);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(147);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(148);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(148);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(149);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(149);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(150);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(150);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(151);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(151);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(152);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(152);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(153);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(153);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(154);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(154);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(155);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(155);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(156);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(156);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(157);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(157);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(158);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(158);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(159);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(159);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(160);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(160);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(161);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(161);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(162);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(162);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(163);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(163);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(164);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(164);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(165);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(165);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(166);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(166);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(167);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(167);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(168);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(168);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(169);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(169);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(170);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(170);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(171);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(171);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(172);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(172);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(173);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(173);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(174);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(174);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(175);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(175);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(176);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(176);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(177);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(177);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(178);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(178);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(179);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(179);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(180);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(180);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(181);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(181);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(182);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(182);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(183);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(183);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(184);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(184);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(185);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(185);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(186);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(186);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(187);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(187);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(188);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(188);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(189);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(189);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(190);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(190);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(191);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(191);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(192);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(192);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(193);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(193);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(194);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(194);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(195);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(195);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(196);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(196);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(197);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(197);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(198);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(198);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(199);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(199);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(200);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(200);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(201);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(201);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(202);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(202);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(203);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(203);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(204);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(204);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(205);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(205);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(206);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(206);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(207);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(207);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(208);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(208);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(209);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(209);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(210);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(210);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(211);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(211);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(212);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(212);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(213);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(213);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(214);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(214);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(215);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(215);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(216);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(216);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(217);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(217);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(218);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(218);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(219);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(219);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(220);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(220);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(221);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(221);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(222);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(222);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(223);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(223);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(224);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(224);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(225);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(225);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(226);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(226);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(227);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(227);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(228);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(228);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(229);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(229);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(230);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(230);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(231);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(231);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(232);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(232);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(233);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(233);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(234);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(234);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(235);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(235);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(236);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(236);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(237);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(237);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(238);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(238);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(239);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(239);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(240);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(240);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(241);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(241);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(242);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(242);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(243);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(243);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(244);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(244);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(245);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(245);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(246);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(246);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(247);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(247);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(248);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(248);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(249);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(249);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(250);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(250);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(251);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(251);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(252);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(252);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(253);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(253);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(254);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(254);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(255);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(255);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 DROP TABLE t;
 CREATE TABLE t (a BINARY(16));
@@ -10211,1202 +12222,1442 @@ ALTER TABLE t CHANGE COLUMN a b BINARY(15);
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(16);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(16);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(17);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(17);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(18);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(18);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(19);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(19);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(20);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(20);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(21);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(21);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(22);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(22);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(23);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(23);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(24);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(24);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(25);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(25);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(26);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(26);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(27);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(27);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(28);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(28);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(29);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(29);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(30);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(30);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(31);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(31);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(32);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(32);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(33);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(33);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(34);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(34);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(35);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(35);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(36);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(36);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(37);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(37);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(38);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(38);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(39);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(39);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(40);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(40);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(41);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(41);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(42);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(42);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(43);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(43);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(44);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(44);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(45);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(45);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(46);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(46);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(47);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(47);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(48);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(48);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(49);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(49);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(50);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(50);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(51);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(51);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(52);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(52);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(53);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(53);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(54);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(54);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(55);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(55);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(56);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(56);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(57);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(57);
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 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(58);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(58);
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 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(59);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(59);
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 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(60);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(60);
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 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(61);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(61);
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 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(62);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(62);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(63);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(63);
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 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(64);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(64);
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 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(65);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(65);
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 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(66);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(66);
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 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(67);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(67);
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 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(68);
-SELECT * FROM t,tt where t.b = tt.a;
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 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(69);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(69);
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 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(70);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(70);
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 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(71);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(71);
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 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(72);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(72);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(73);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(73);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(74);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(74);
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 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(75);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(75);
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 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(76);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(76);
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 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(77);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(77);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(78);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(78);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(79);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(79);
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 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(80);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(80);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(81);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(81);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(82);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(82);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(83);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(83);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(84);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(84);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(85);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(85);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(86);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(86);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(87);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(87);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(88);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(88);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(89);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(89);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(90);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(90);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(91);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(91);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(92);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(92);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(93);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(93);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(94);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(94);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(95);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(95);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(96);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(96);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(97);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(97);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(98);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(98);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(99);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(99);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(100);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(100);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(101);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(101);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(102);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(102);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(103);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(103);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(104);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(104);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(105);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(105);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(106);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(106);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(107);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(107);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(108);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(108);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(109);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(109);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(110);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(110);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(111);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(111);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(112);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(112);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(113);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(113);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(114);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(114);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(115);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(115);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(116);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(116);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(117);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(117);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(118);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(118);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(119);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(119);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(120);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(120);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(121);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(121);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(122);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(122);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(123);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(123);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(124);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(124);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(125);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(125);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(126);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(126);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(127);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(127);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(128);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(128);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(129);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(129);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(130);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(130);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(131);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(131);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(132);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(132);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(133);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(133);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(134);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(134);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(135);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(135);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(136);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(136);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(137);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(137);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(138);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(138);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(139);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(139);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(140);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(140);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(141);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(141);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(142);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(142);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(143);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(143);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(144);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(144);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(145);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(145);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(146);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(146);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(147);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(147);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(148);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(148);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(149);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(149);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(150);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(150);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(151);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(151);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(152);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(152);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(153);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(153);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(154);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(154);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(155);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(155);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(156);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(156);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(157);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(157);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(158);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(158);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(159);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(159);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(160);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(160);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(161);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(161);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(162);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(162);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(163);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(163);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(164);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(164);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(165);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(165);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(166);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(166);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(167);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(167);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(168);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(168);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(169);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(169);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(170);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(170);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(171);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(171);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(172);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(172);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(173);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(173);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(174);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(174);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(175);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(175);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(176);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(176);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(177);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(177);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(178);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(178);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(179);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(179);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(180);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(180);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(181);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(181);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(182);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(182);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(183);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(183);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(184);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(184);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(185);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(185);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(186);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(186);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(187);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(187);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(188);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(188);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(189);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(189);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(190);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(190);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(191);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(191);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(192);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(192);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(193);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(193);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(194);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(194);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(195);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(195);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(196);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(196);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(197);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(197);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(198);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(198);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(199);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(199);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(200);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(200);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(201);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(201);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(202);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(202);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(203);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(203);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(204);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(204);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(205);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(205);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(206);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(206);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(207);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(207);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(208);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(208);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(209);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(209);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(210);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(210);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(211);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(211);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(212);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(212);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(213);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(213);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(214);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(214);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(215);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(215);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(216);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(216);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(217);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(217);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(218);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(218);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(219);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(219);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(220);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(220);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(221);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(221);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(222);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(222);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(223);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(223);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(224);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(224);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(225);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(225);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(226);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(226);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(227);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(227);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(228);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(228);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(229);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(229);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(230);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(230);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(231);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(231);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(232);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(232);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(233);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(233);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(234);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(234);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(235);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(235);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(236);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(236);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(237);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(237);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(238);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(238);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(239);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(239);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(240);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(240);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(241);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(241);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(242);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(242);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(243);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(243);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(244);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(244);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(245);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(245);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(246);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(246);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(247);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(247);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(248);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(248);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(249);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(249);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(250);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(250);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(251);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(251);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(252);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(252);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(253);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(253);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(254);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(254);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(255);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(255);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 DROP TABLE t;
 CREATE TABLE t (a BINARY(31));
@@ -11503,1127 +13754,1352 @@ ALTER TABLE t CHANGE COLUMN a b BINARY(30);
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(31);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(31);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(32);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(32);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(33);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(33);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(34);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(34);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(35);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(35);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(36);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(36);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(37);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(37);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(38);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(38);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(39);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(39);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(40);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(40);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(41);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(41);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(42);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(42);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(43);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(43);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(44);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(44);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(45);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(45);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(46);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(46);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(47);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(47);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(48);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(48);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(49);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(49);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(50);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(50);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(51);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(51);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(52);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(52);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(53);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(53);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(54);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(54);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(55);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(55);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(56);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(56);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(57);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(57);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(58);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(58);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(59);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(59);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(60);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(60);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(61);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(61);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(62);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(62);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(63);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(63);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(64);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(64);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(65);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(65);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(66);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(66);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(67);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(67);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(68);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(68);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(69);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(69);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(70);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(70);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(71);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(71);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(72);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(72);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(73);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(73);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(74);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(74);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(75);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(75);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(76);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(76);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(77);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(77);
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 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(78);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(78);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(79);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(79);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(80);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(80);
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 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(81);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(81);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(82);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(82);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(83);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(83);
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 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(84);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(84);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(85);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(85);
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 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(86);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(86);
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 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(87);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(87);
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 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(88);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(88);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(89);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(89);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(90);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(90);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(91);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(91);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(92);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(92);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(93);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(93);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(94);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(94);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(95);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(95);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(96);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(96);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(97);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(97);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(98);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(98);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(99);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(99);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(100);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(100);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(101);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(101);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(102);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(102);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(103);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(103);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(104);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(104);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(105);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(105);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(106);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(106);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(107);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(107);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(108);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(108);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(109);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(109);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(110);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(110);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(111);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(111);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(112);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(112);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(113);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(113);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(114);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(114);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(115);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(115);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(116);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(116);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(117);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(117);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(118);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(118);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(119);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(119);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(120);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(120);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(121);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(121);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(122);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(122);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(123);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(123);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(124);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(124);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(125);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(125);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(126);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(126);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(127);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(127);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(128);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(128);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(129);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(129);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(130);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(130);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(131);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(131);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(132);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(132);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(133);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(133);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(134);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(134);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(135);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(135);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(136);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(136);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(137);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(137);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(138);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(138);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(139);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(139);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(140);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(140);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(141);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(141);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(142);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(142);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(143);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(143);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(144);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(144);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(145);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(145);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(146);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(146);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(147);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(147);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(148);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(148);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(149);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(149);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(150);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(150);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(151);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(151);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(152);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(152);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(153);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(153);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(154);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(154);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(155);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(155);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(156);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(156);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(157);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(157);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(158);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(158);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(159);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(159);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(160);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(160);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(161);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(161);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(162);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(162);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(163);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(163);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(164);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(164);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(165);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(165);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(166);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(166);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(167);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(167);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(168);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(168);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(169);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(169);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(170);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(170);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(171);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(171);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(172);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(172);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(173);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(173);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(174);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(174);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(175);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(175);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(176);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(176);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(177);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(177);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(178);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(178);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(179);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(179);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(180);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(180);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(181);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(181);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(182);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(182);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(183);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(183);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(184);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(184);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(185);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(185);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(186);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(186);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(187);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(187);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(188);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(188);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(189);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(189);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(190);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(190);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(191);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(191);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(192);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(192);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(193);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(193);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(194);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(194);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(195);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(195);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(196);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(196);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(197);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(197);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(198);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(198);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(199);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(199);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(200);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(200);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(201);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(201);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(202);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(202);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(203);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(203);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(204);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(204);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(205);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(205);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(206);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(206);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(207);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(207);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(208);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(208);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(209);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(209);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(210);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(210);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(211);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(211);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(212);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(212);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(213);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(213);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(214);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(214);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(215);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(215);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(216);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(216);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(217);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(217);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(218);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(218);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(219);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(219);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(220);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(220);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(221);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(221);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(222);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(222);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(223);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(223);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(224);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(224);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(225);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(225);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(226);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(226);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(227);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(227);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(228);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(228);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(229);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(229);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(230);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(230);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(231);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(231);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(232);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(232);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(233);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(233);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(234);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(234);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(235);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(235);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(236);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(236);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(237);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(237);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(238);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(238);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(239);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(239);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(240);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(240);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(241);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(241);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(242);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(242);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(243);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(243);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(244);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(244);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(245);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(245);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(246);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(246);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(247);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(247);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(248);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(248);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(249);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(249);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(250);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(250);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(251);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(251);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(252);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(252);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(253);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(253);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(254);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(254);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(255);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(255);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 DROP TABLE t;
 CREATE TABLE t (a BINARY(32));
@@ -12723,1122 +15199,1346 @@ ALTER TABLE t CHANGE COLUMN a b BINARY(31);
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(32);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(32);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(33);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(33);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(34);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(34);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(35);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(35);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(36);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(36);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(37);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(37);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(38);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(38);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(39);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(39);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(40);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(40);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(41);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(41);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(42);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(42);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(43);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(43);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(44);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(44);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(45);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(45);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(46);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(46);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(47);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(47);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(48);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(48);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(49);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(49);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(50);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(50);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(51);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(51);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(52);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(52);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(53);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(53);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(54);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(54);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(55);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(55);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(56);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(56);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(57);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(57);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(58);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(58);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(59);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(59);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(60);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(60);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(61);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(61);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(62);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(62);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(63);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(63);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(64);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(64);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(65);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(65);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(66);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(66);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(67);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(67);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(68);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(68);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(69);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(69);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(70);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(70);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(71);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(71);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(72);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(72);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(73);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(73);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(74);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(74);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(75);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(75);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(76);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(76);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(77);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(77);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(78);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(78);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(79);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(79);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(80);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(80);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(81);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(81);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(82);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(82);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(83);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(83);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(84);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(84);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(85);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(85);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(86);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(86);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(87);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(87);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(88);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(88);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(89);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(89);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(90);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(90);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(91);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(91);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(92);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(92);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(93);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(93);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(94);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(94);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(95);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(95);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(96);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(96);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(97);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(97);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(98);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(98);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(99);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(99);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(100);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(100);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(101);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(101);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(102);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(102);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(103);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(103);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(104);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(104);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(105);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(105);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(106);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(106);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(107);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(107);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(108);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(108);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(109);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(109);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(110);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(110);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(111);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(111);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(112);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(112);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(113);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(113);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(114);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(114);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(115);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(115);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(116);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(116);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(117);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(117);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(118);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(118);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(119);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(119);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(120);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(120);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(121);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(121);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(122);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(122);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(123);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(123);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(124);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(124);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(125);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(125);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(126);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(126);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(127);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(127);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(128);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(128);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(129);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(129);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(130);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(130);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(131);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(131);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(132);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(132);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(133);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(133);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(134);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(134);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(135);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(135);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(136);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(136);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(137);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(137);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(138);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(138);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(139);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(139);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(140);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(140);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(141);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(141);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(142);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(142);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(143);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(143);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(144);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(144);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(145);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(145);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(146);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(146);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(147);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(147);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(148);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(148);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(149);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(149);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(150);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(150);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(151);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(151);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(152);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(152);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(153);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(153);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(154);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(154);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(155);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(155);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(156);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(156);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(157);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(157);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(158);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(158);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(159);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(159);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(160);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(160);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(161);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(161);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(162);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(162);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(163);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(163);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(164);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(164);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(165);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(165);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(166);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(166);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(167);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(167);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(168);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(168);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(169);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(169);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(170);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(170);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(171);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(171);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(172);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(172);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(173);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(173);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(174);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(174);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(175);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(175);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(176);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(176);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(177);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(177);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(178);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(178);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(179);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(179);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(180);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(180);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(181);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(181);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(182);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(182);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(183);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(183);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(184);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(184);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(185);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(185);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(186);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(186);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(187);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(187);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(188);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(188);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(189);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(189);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(190);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(190);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(191);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(191);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(192);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(192);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(193);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(193);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(194);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(194);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(195);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(195);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(196);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(196);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(197);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(197);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(198);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(198);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(199);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(199);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(200);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(200);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(201);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(201);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(202);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(202);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(203);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(203);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(204);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(204);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(205);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(205);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(206);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(206);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(207);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(207);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(208);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(208);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(209);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(209);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(210);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(210);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(211);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(211);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(212);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(212);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(213);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(213);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(214);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(214);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(215);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(215);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(216);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(216);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(217);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(217);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(218);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(218);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(219);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(219);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(220);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(220);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(221);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(221);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(222);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(222);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(223);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(223);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(224);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(224);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(225);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(225);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(226);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(226);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(227);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(227);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(228);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(228);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(229);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(229);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(230);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(230);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(231);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(231);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(232);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(232);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(233);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(233);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(234);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(234);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(235);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(235);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(236);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(236);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(237);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(237);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(238);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(238);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(239);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(239);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(240);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(240);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(241);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(241);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(242);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(242);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(243);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(243);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(244);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(244);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(245);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(245);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(246);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(246);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(247);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(247);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(248);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(248);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(249);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(249);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(250);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(250);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(251);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(251);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(252);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(252);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(253);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(253);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(254);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(254);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(255);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(255);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 DROP TABLE t;
 CREATE TABLE t (a BINARY(63));
@@ -14031,967 +16731,1160 @@ ALTER TABLE t CHANGE COLUMN a b BINARY(62);
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(63);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(63);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(64);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(64);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(65);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(65);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(66);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(66);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(67);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(67);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(68);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(68);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(69);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(69);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(70);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(70);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(71);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(71);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(72);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(72);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(73);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(73);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(74);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(74);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(75);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(75);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(76);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(76);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(77);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(77);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(78);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(78);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(79);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(79);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(80);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(80);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(81);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(81);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(82);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(82);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(83);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(83);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(84);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(84);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(85);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(85);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(86);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(86);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(87);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(87);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(88);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(88);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(89);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(89);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(90);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(90);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(91);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(91);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(92);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(92);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(93);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(93);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(94);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(94);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(95);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(95);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(96);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(96);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(97);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(97);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(98);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(98);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(99);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(99);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(100);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(100);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(101);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(101);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(102);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(102);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(103);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(103);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(104);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(104);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(105);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(105);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(106);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(106);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(107);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(107);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(108);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(108);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(109);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(109);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(110);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(110);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(111);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(111);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(112);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(112);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(113);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(113);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(114);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(114);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(115);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(115);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(116);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(116);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(117);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(117);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(118);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(118);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(119);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(119);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(120);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(120);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(121);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(121);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(122);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(122);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(123);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(123);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(124);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(124);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(125);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(125);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(126);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(126);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(127);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(127);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(128);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(128);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(129);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(129);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(130);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(130);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(131);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(131);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(132);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(132);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(133);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(133);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(134);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(134);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(135);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(135);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(136);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(136);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(137);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(137);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(138);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(138);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(139);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(139);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(140);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(140);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(141);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(141);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(142);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(142);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(143);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(143);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(144);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(144);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(145);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(145);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(146);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(146);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(147);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(147);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(148);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(148);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(149);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(149);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(150);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(150);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(151);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(151);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(152);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(152);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(153);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(153);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(154);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(154);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(155);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(155);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(156);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(156);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(157);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(157);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(158);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(158);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(159);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(159);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(160);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(160);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(161);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(161);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(162);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(162);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(163);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(163);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(164);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(164);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(165);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(165);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(166);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(166);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(167);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(167);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(168);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(168);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(169);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(169);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(170);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(170);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(171);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(171);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(172);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(172);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(173);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(173);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(174);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(174);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(175);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(175);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(176);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(176);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(177);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(177);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(178);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(178);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(179);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(179);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(180);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(180);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(181);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(181);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(182);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(182);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(183);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(183);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(184);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(184);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(185);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(185);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(186);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(186);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(187);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(187);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(188);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(188);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(189);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(189);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(190);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(190);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(191);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(191);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(192);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(192);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(193);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(193);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(194);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(194);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(195);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(195);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(196);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(196);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(197);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(197);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(198);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(198);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(199);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(199);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(200);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(200);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(201);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(201);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(202);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(202);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(203);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(203);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(204);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(204);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(205);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(205);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(206);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(206);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(207);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(207);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(208);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(208);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(209);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(209);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(210);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(210);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(211);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(211);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(212);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(212);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(213);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(213);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(214);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(214);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(215);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(215);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(216);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(216);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(217);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(217);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(218);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(218);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(219);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(219);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(220);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(220);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(221);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(221);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(222);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(222);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(223);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(223);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(224);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(224);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(225);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(225);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(226);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(226);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(227);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(227);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(228);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(228);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(229);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(229);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(230);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(230);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(231);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(231);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(232);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(232);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(233);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(233);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(234);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(234);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(235);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(235);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(236);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(236);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(237);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(237);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(238);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(238);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(239);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(239);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(240);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(240);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(241);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(241);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(242);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(242);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(243);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(243);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(244);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(244);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(245);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(245);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(246);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(246);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(247);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(247);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(248);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(248);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(249);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(249);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(250);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(250);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(251);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(251);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(252);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(252);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(253);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(253);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(254);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(254);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(255);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(255);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 DROP TABLE t;
 CREATE TABLE t (a BINARY(64));
@@ -15187,962 +18080,1154 @@ ALTER TABLE t CHANGE COLUMN a b BINARY(63);
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(64);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(64);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(65);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(65);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(66);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(66);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(67);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(67);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(68);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(68);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(69);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(69);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(70);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(70);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(71);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(71);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(72);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(72);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(73);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(73);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(74);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(74);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(75);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(75);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(76);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(76);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(77);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(77);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(78);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(78);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(79);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(79);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(80);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(80);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(81);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(81);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(82);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(82);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(83);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(83);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(84);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(84);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(85);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(85);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(86);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(86);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(87);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(87);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(88);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(88);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(89);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(89);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(90);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(90);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(91);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(91);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(92);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(92);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(93);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(93);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(94);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(94);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(95);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(95);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(96);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(96);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(97);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(97);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(98);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(98);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(99);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(99);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(100);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(100);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(101);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(101);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(102);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(102);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(103);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(103);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(104);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(104);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(105);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(105);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(106);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(106);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(107);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(107);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(108);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(108);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(109);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(109);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(110);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(110);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(111);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(111);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(112);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(112);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(113);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(113);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(114);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(114);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(115);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(115);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(116);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(116);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(117);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(117);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(118);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(118);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(119);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(119);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(120);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(120);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(121);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(121);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(122);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(122);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(123);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(123);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(124);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(124);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(125);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(125);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(126);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(126);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(127);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(127);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(128);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(128);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(129);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(129);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(130);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(130);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(131);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(131);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(132);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(132);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(133);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(133);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(134);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(134);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(135);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(135);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(136);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(136);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(137);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(137);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(138);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(138);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(139);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(139);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(140);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(140);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(141);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(141);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(142);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(142);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(143);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(143);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(144);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(144);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(145);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(145);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(146);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(146);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(147);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(147);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(148);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(148);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(149);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(149);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(150);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(150);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(151);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(151);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(152);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(152);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(153);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(153);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(154);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(154);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(155);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(155);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(156);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(156);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(157);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(157);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(158);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(158);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(159);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(159);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(160);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(160);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(161);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(161);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(162);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(162);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(163);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(163);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(164);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(164);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(165);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(165);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(166);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(166);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(167);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(167);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(168);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(168);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(169);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(169);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(170);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(170);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(171);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(171);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(172);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(172);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(173);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(173);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(174);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(174);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(175);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(175);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(176);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(176);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(177);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(177);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(178);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(178);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(179);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(179);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(180);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(180);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(181);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(181);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(182);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(182);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(183);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(183);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(184);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(184);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(185);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(185);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(186);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(186);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(187);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(187);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(188);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(188);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(189);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(189);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(190);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(190);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(191);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(191);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(192);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(192);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(193);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(193);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(194);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(194);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(195);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(195);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(196);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(196);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(197);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(197);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(198);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(198);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(199);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(199);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(200);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(200);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(201);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(201);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(202);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(202);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(203);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(203);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(204);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(204);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(205);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(205);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(206);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(206);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(207);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(207);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(208);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(208);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(209);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(209);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(210);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(210);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(211);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(211);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(212);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(212);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(213);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(213);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(214);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(214);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(215);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(215);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(216);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(216);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(217);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(217);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(218);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(218);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(219);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(219);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(220);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(220);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(221);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(221);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(222);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(222);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(223);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(223);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(224);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(224);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(225);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(225);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(226);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(226);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(227);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(227);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(228);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(228);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(229);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(229);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(230);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(230);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(231);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(231);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(232);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(232);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(233);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(233);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(234);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(234);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(235);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(235);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(236);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(236);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(237);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(237);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(238);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(238);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(239);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(239);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(240);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(240);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(241);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(241);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(242);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(242);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(243);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(243);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(244);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(244);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(245);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(245);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(246);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(246);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(247);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(247);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(248);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(248);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(249);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(249);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(250);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(250);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(251);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(251);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(252);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(252);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(253);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(253);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(254);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(254);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(255);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(255);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 DROP TABLE t;
 CREATE TABLE t (a BINARY(127));
@@ -16527,647 +19612,776 @@ ALTER TABLE t CHANGE COLUMN a b BINARY(126);
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(127);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(127);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(128);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(128);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(129);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(129);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(130);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(130);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(131);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(131);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(132);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(132);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(133);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(133);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(134);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(134);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(135);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(135);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(136);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(136);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(137);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(137);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(138);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(138);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(139);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(139);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(140);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(140);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(141);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(141);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(142);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(142);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(143);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(143);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(144);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(144);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(145);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(145);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(146);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(146);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(147);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(147);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(148);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(148);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(149);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(149);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(150);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(150);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(151);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(151);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(152);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(152);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(153);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(153);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(154);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(154);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(155);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(155);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(156);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(156);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(157);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(157);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(158);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(158);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(159);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(159);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(160);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(160);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(161);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(161);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(162);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(162);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(163);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(163);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(164);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(164);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(165);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(165);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(166);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(166);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(167);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(167);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(168);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(168);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(169);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(169);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(170);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(170);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(171);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(171);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(172);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(172);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(173);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(173);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(174);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(174);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(175);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(175);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(176);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(176);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(177);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(177);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(178);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(178);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(179);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(179);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(180);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(180);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(181);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(181);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(182);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(182);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(183);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(183);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(184);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(184);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(185);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(185);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(186);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(186);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(187);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(187);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(188);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(188);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(189);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(189);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(190);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(190);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(191);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(191);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(192);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(192);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(193);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(193);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(194);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(194);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(195);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(195);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(196);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(196);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(197);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(197);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(198);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(198);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(199);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(199);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(200);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(200);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(201);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(201);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(202);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(202);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(203);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(203);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(204);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(204);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(205);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(205);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(206);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(206);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(207);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(207);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(208);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(208);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(209);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(209);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(210);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(210);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(211);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(211);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(212);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(212);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(213);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(213);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(214);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(214);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(215);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(215);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(216);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(216);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(217);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(217);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(218);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(218);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(219);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(219);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(220);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(220);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(221);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(221);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(222);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(222);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(223);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(223);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(224);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(224);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(225);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(225);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(226);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(226);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(227);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(227);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(228);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(228);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(229);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(229);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(230);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(230);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(231);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(231);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(232);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(232);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(233);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(233);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(234);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(234);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(235);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(235);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(236);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(236);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(237);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(237);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(238);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(238);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(239);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(239);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(240);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(240);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(241);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(241);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(242);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(242);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(243);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(243);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(244);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(244);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(245);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(245);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(246);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(246);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(247);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(247);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(248);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(248);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(249);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(249);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(250);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(250);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(251);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(251);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(252);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(252);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(253);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(253);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(254);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(254);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(255);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(255);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 DROP TABLE t;
 CREATE TABLE t (a BINARY(128));
@@ -17555,642 +20769,770 @@ ALTER TABLE t CHANGE COLUMN a b BINARY(127);
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(128);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(128);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(129);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(129);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(130);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(130);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(131);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(131);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(132);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(132);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(133);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(133);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(134);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(134);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(135);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(135);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(136);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(136);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(137);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(137);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(138);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(138);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(139);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(139);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(140);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(140);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(141);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(141);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(142);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(142);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(143);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(143);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(144);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(144);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(145);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(145);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(146);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(146);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(147);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(147);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(148);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(148);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(149);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(149);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(150);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(150);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(151);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(151);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(152);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(152);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(153);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(153);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(154);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(154);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(155);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(155);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(156);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(156);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(157);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(157);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(158);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(158);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(159);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(159);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(160);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(160);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(161);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(161);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(162);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(162);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(163);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(163);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(164);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(164);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(165);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(165);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(166);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(166);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(167);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(167);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(168);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(168);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(169);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(169);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(170);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(170);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(171);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(171);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(172);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(172);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(173);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(173);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(174);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(174);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(175);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(175);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(176);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(176);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(177);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(177);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(178);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(178);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(179);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(179);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(180);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(180);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(181);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(181);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(182);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(182);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(183);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(183);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(184);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(184);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(185);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(185);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(186);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(186);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(187);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(187);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(188);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(188);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(189);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(189);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(190);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(190);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(191);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(191);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(192);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(192);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(193);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(193);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(194);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(194);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(195);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(195);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(196);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(196);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(197);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(197);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(198);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(198);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(199);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(199);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(200);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(200);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(201);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(201);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(202);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(202);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(203);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(203);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(204);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(204);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(205);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(205);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(206);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(206);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(207);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(207);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(208);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(208);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(209);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(209);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(210);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(210);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(211);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(211);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(212);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(212);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(213);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(213);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(214);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(214);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(215);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(215);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(216);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(216);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(217);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(217);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(218);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(218);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(219);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(219);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(220);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(220);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(221);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(221);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(222);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(222);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(223);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(223);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(224);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(224);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(225);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(225);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(226);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(226);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(227);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(227);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(228);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(228);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(229);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(229);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(230);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(230);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(231);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(231);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(232);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(232);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(233);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(233);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(234);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(234);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(235);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(235);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(236);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(236);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(237);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(237);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(238);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(238);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(239);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(239);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(240);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(240);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(241);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(241);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(242);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(242);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(243);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(243);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(244);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(244);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(245);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(245);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(246);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(246);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(247);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(247);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(248);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(248);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(249);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(249);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(250);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(250);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(251);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(251);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(252);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(252);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(253);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(253);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(254);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(254);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(255);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(255);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 DROP TABLE t;
 CREATE TABLE t (a BINARY(254));
@@ -18956,12 +22298,14 @@ ALTER TABLE t CHANGE COLUMN a b BINARY(253);
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(254);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(254);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(255);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(255);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 DROP TABLE t;
 CREATE TABLE t (a BINARY(255));
@@ -19730,6 +23074,7 @@ ALTER TABLE t CHANGE COLUMN a b BINARY(254);
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b BINARY(255);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a BINARY(255);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 DROP TABLE t;
diff --git a/mysql-test/suite/tokudb.change_column/t/change_char_rename.py b/mysql-test/suite/tokudb.change_column/t/change_char_rename.py
index eccba75f314..7b1a8538bcb 100644
--- a/mysql-test/suite/tokudb.change_column/t/change_char_rename.py
+++ b/mysql-test/suite/tokudb.change_column/t/change_char_rename.py
@@ -16,7 +16,8 @@ def gen_test(n):
             print "INSERT INTO tt SELECT * FROM t;"
         print "ALTER TABLE t CHANGE COLUMN a b CHAR(%d);" % (i)
         if i >= n:
-            print "SELECT * FROM t,tt where t.b = tt.a;"
+            print "ALTER TABLE t CHANGE COLUMN b a CHAR(%d);" % (i)
+            print "SELECT * FROM t,tt where t.a = tt.a;"
             print "DROP TABLE tt;"
     print "DROP TABLE t;"
 
diff --git a/mysql-test/suite/tokudb.change_column/t/change_char_rename.test b/mysql-test/suite/tokudb.change_column/t/change_char_rename.test
index 26ae7876c3d..1b293c30bfa 100644
--- a/mysql-test/suite/tokudb.change_column/t/change_char_rename.test
+++ b/mysql-test/suite/tokudb.change_column/t/change_char_rename.test
@@ -11,1272 +11,1526 @@ INSERT INTO t VALUES ('people');
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(2);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(2);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(3);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(3);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(4);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(4);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(5);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(5);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(6);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(6);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(7);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(7);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(8);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(8);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(9);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(9);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(10);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(10);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(11);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(11);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(12);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(12);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(13);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(13);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(14);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(14);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(15);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(15);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(16);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(16);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(17);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(17);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(18);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(18);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(19);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(19);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(20);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(20);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(21);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(21);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(22);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(22);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(23);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(23);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(24);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(24);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(25);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(25);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(26);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(26);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(27);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(27);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(28);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(28);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(29);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(29);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(30);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(30);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(31);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(31);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(32);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(32);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(33);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(33);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(34);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(34);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(35);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(35);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(36);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(36);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(37);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(37);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(38);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(38);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(39);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(39);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(40);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(40);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(41);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(41);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(42);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(42);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(43);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(43);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(44);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(44);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(45);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(45);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(46);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(46);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(47);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(47);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(48);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(48);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(49);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(49);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(50);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(50);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(51);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(51);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(52);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(52);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(53);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(53);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(54);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(54);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(55);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(55);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(56);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(56);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(57);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(57);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(58);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(58);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(59);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(59);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(60);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(60);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(61);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(61);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(62);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(62);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(63);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(63);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(64);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(64);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(65);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(65);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(66);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(66);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(67);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(67);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(68);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(68);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(69);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(69);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(70);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(70);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(71);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(71);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(72);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(72);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(73);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(73);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(74);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(74);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(75);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(75);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(76);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(76);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(77);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(77);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(78);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(78);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(79);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(79);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(80);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(80);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(81);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(81);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(82);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(82);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(83);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(83);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(84);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(84);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(85);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(85);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(86);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(86);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(87);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(87);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(88);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(88);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(89);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(89);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(90);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(90);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(91);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(91);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(92);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(92);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(93);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(93);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(94);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(94);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(95);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(95);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(96);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(96);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(97);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(97);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(98);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(98);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(99);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(99);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(100);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(100);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(101);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(101);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(102);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(102);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(103);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(103);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(104);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(104);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(105);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(105);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(106);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(106);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(107);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(107);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(108);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(108);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(109);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(109);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(110);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(110);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(111);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(111);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(112);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(112);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(113);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(113);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(114);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(114);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(115);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(115);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(116);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(116);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(117);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(117);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(118);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(118);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(119);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(119);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(120);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(120);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(121);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(121);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(122);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(122);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(123);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(123);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(124);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(124);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(125);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(125);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(126);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(126);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(127);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(127);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(128);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(128);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(129);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(129);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(130);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(130);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(131);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(131);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(132);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(132);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(133);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(133);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(134);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(134);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(135);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(135);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(136);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(136);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(137);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(137);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(138);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(138);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(139);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(139);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(140);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(140);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(141);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(141);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(142);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(142);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(143);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(143);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(144);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(144);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(145);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(145);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(146);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(146);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(147);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(147);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(148);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(148);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(149);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(149);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(150);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(150);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(151);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(151);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(152);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(152);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(153);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(153);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(154);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(154);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(155);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(155);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(156);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(156);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(157);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(157);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(158);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(158);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(159);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(159);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(160);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(160);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(161);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(161);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(162);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(162);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(163);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(163);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(164);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(164);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(165);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(165);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(166);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(166);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(167);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(167);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(168);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(168);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(169);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(169);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(170);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(170);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(171);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(171);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(172);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(172);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(173);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(173);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(174);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(174);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(175);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(175);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(176);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(176);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(177);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(177);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(178);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(178);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(179);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(179);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(180);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(180);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(181);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(181);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(182);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(182);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(183);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(183);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(184);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(184);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(185);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(185);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(186);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(186);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(187);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(187);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(188);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(188);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(189);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(189);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(190);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(190);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(191);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(191);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(192);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(192);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(193);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(193);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(194);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(194);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(195);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(195);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(196);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(196);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(197);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(197);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(198);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(198);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(199);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(199);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(200);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(200);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(201);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(201);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(202);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(202);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(203);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(203);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(204);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(204);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(205);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(205);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(206);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(206);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(207);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(207);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(208);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(208);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(209);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(209);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(210);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(210);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(211);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(211);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(212);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(212);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(213);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(213);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(214);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(214);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(215);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(215);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(216);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(216);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(217);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(217);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(218);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(218);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(219);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(219);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(220);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(220);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(221);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(221);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(222);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(222);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(223);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(223);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(224);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(224);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(225);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(225);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(226);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(226);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(227);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(227);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(228);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(228);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(229);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(229);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(230);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(230);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(231);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(231);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(232);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(232);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(233);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(233);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(234);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(234);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(235);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(235);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(236);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(236);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(237);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(237);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(238);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(238);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(239);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(239);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(240);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(240);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(241);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(241);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(242);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(242);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(243);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(243);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(244);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(244);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(245);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(245);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(246);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(246);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(247);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(247);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(248);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(248);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(249);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(249);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(250);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(250);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(251);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(251);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(252);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(252);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(253);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(253);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(254);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(254);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(255);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(255);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 DROP TABLE t;
 CREATE TABLE t (a CHAR(2));
@@ -1286,1272 +1540,1526 @@ INSERT INTO t VALUES ('people');
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(2);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(2);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(3);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(3);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(4);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(4);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(5);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(5);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(6);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(6);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(7);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(7);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(8);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(8);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(9);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(9);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(10);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(10);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(11);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(11);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(12);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(12);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(13);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(13);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(14);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(14);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(15);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(15);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(16);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(16);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(17);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(17);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(18);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(18);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(19);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(19);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(20);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(20);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(21);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(21);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(22);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(22);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(23);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(23);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(24);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(24);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(25);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(25);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(26);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(26);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(27);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(27);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(28);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(28);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(29);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(29);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(30);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(30);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(31);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(31);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(32);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(32);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(33);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(33);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(34);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(34);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(35);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(35);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(36);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(36);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(37);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(37);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(38);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(38);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(39);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(39);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(40);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(40);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(41);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(41);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(42);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(42);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(43);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(43);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(44);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(44);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(45);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(45);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(46);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(46);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(47);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(47);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(48);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(48);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(49);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(49);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(50);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(50);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(51);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(51);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(52);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(52);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(53);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(53);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(54);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(54);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(55);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(55);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(56);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(56);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(57);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(57);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(58);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(58);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(59);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(59);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(60);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(60);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(61);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(61);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(62);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(62);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(63);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(63);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(64);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(64);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(65);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(65);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(66);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(66);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(67);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(67);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(68);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(68);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(69);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(69);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(70);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(70);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(71);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(71);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(72);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(72);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(73);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(73);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(74);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(74);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(75);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(75);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(76);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(76);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(77);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(77);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(78);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(78);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(79);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(79);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(80);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(80);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(81);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(81);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(82);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(82);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(83);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(83);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(84);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(84);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(85);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(85);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(86);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(86);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(87);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(87);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(88);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(88);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(89);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(89);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(90);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(90);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(91);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(91);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(92);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(92);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(93);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(93);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(94);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(94);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(95);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(95);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(96);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(96);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(97);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(97);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(98);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(98);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(99);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(99);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(100);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(100);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(101);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(101);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(102);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(102);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(103);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(103);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(104);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(104);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(105);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(105);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(106);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(106);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(107);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(107);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(108);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(108);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(109);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(109);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(110);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(110);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(111);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(111);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(112);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(112);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(113);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(113);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(114);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(114);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(115);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(115);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(116);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(116);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(117);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(117);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(118);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(118);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(119);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(119);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(120);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(120);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(121);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(121);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(122);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(122);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(123);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(123);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(124);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(124);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(125);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(125);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(126);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(126);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(127);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(127);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(128);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(128);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(129);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(129);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(130);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(130);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(131);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(131);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(132);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(132);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(133);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(133);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(134);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(134);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(135);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(135);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(136);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(136);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(137);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(137);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(138);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(138);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(139);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(139);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(140);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(140);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(141);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(141);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(142);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(142);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(143);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(143);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(144);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(144);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(145);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(145);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(146);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(146);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(147);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(147);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(148);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(148);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(149);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(149);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(150);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(150);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(151);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(151);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(152);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(152);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(153);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(153);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(154);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(154);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(155);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(155);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(156);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(156);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(157);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(157);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(158);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(158);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(159);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(159);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(160);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(160);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(161);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(161);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(162);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(162);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(163);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(163);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(164);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(164);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(165);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(165);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(166);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(166);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(167);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(167);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(168);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(168);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(169);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(169);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(170);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(170);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(171);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(171);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(172);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(172);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(173);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(173);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(174);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(174);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(175);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(175);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(176);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(176);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(177);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(177);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(178);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(178);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(179);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(179);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(180);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(180);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(181);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(181);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(182);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(182);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(183);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(183);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(184);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(184);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(185);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(185);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(186);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(186);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(187);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(187);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(188);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(188);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(189);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(189);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(190);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(190);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(191);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(191);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(192);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(192);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(193);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(193);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(194);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(194);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(195);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(195);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(196);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(196);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(197);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(197);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(198);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(198);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(199);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(199);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(200);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(200);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(201);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(201);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(202);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(202);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(203);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(203);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(204);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(204);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(205);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(205);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(206);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(206);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(207);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(207);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(208);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(208);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(209);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(209);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(210);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(210);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(211);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(211);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(212);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(212);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(213);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(213);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(214);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(214);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(215);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(215);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(216);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(216);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(217);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(217);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(218);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(218);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(219);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(219);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(220);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(220);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(221);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(221);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(222);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(222);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(223);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(223);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(224);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(224);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(225);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(225);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(226);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(226);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(227);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(227);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(228);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(228);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(229);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(229);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(230);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(230);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(231);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(231);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(232);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(232);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(233);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(233);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(234);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(234);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(235);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(235);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(236);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(236);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(237);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(237);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(238);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(238);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(239);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(239);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(240);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(240);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(241);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(241);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(242);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(242);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(243);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(243);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(244);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(244);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(245);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(245);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(246);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(246);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(247);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(247);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(248);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(248);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(249);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(249);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(250);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(250);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(251);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(251);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(252);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(252);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(253);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(253);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(254);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(254);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(255);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(255);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 DROP TABLE t;
 CREATE TABLE t (a CHAR(3));
@@ -2564,1267 +3072,1520 @@ ALTER TABLE t CHANGE COLUMN a b CHAR(2);
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(3);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(3);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(4);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(4);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(5);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(5);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(6);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(6);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(7);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(7);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(8);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(8);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(9);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(9);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(10);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(10);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(11);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(11);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(12);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(12);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(13);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(13);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(14);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(14);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(15);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(15);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(16);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(16);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(17);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(17);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(18);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(18);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(19);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(19);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(20);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(20);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(21);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(21);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(22);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(22);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(23);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(23);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(24);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(24);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(25);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(25);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(26);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(26);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(27);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(27);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(28);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(28);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(29);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(29);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(30);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(30);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(31);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(31);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(32);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(32);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(33);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(33);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(34);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(34);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(35);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(35);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(36);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(36);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(37);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(37);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(38);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(38);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(39);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(39);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(40);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(40);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(41);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(41);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(42);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(42);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(43);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(43);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(44);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(44);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(45);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(45);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(46);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(46);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(47);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(47);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(48);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(48);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(49);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(49);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(50);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(50);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(51);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(51);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(52);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(52);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(53);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(53);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(54);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(54);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(55);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(55);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(56);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(56);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(57);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(57);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(58);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(58);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(59);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(59);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(60);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(60);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(61);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(61);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(62);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(62);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(63);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(63);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(64);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(64);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(65);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(65);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(66);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(66);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(67);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(67);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(68);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(68);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(69);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(69);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(70);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(70);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(71);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(71);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(72);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(72);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(73);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(73);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(74);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(74);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(75);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(75);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(76);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(76);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(77);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(77);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(78);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(78);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(79);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(79);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(80);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(80);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(81);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(81);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(82);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(82);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(83);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(83);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(84);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(84);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(85);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(85);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(86);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(86);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(87);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(87);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(88);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(88);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(89);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(89);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(90);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(90);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(91);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(91);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(92);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(92);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(93);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(93);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(94);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(94);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(95);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(95);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(96);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(96);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(97);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(97);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(98);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(98);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(99);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(99);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(100);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(100);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(101);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(101);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(102);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(102);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(103);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(103);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(104);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(104);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(105);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(105);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(106);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(106);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(107);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(107);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(108);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(108);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(109);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(109);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(110);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(110);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(111);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(111);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(112);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(112);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(113);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(113);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(114);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(114);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(115);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(115);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(116);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(116);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(117);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(117);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(118);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(118);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(119);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(119);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(120);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(120);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(121);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(121);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(122);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(122);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(123);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(123);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(124);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(124);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(125);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(125);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(126);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(126);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(127);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(127);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(128);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(128);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(129);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(129);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(130);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(130);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(131);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(131);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(132);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(132);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(133);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(133);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(134);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(134);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(135);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(135);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(136);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(136);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(137);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(137);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(138);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(138);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(139);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(139);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(140);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(140);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(141);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(141);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(142);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(142);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(143);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(143);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(144);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(144);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(145);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(145);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(146);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(146);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(147);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(147);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(148);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(148);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(149);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(149);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(150);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(150);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(151);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(151);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(152);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(152);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(153);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(153);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(154);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(154);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(155);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(155);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(156);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(156);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(157);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(157);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(158);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(158);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(159);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(159);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(160);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(160);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(161);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(161);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(162);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(162);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(163);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(163);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(164);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(164);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(165);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(165);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(166);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(166);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(167);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(167);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(168);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(168);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(169);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(169);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(170);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(170);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(171);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(171);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(172);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(172);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(173);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(173);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(174);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(174);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(175);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(175);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(176);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(176);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(177);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(177);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(178);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(178);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(179);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(179);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(180);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(180);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(181);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(181);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(182);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(182);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(183);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(183);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(184);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(184);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(185);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(185);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(186);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(186);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(187);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(187);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(188);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(188);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(189);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(189);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(190);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(190);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(191);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(191);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(192);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(192);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(193);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(193);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(194);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(194);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(195);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(195);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(196);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(196);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(197);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(197);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(198);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(198);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(199);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(199);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(200);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(200);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(201);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(201);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(202);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(202);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(203);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(203);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(204);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(204);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(205);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(205);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(206);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(206);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(207);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(207);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(208);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(208);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(209);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(209);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(210);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(210);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(211);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(211);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(212);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(212);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(213);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(213);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(214);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(214);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(215);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(215);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(216);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(216);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(217);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(217);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(218);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(218);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(219);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(219);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(220);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(220);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(221);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(221);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(222);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(222);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(223);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(223);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(224);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(224);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(225);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(225);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(226);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(226);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(227);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(227);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(228);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(228);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(229);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(229);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(230);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(230);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(231);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(231);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(232);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(232);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(233);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(233);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(234);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(234);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(235);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(235);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(236);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(236);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(237);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(237);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(238);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(238);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(239);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(239);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(240);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(240);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(241);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(241);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(242);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(242);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(243);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(243);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(244);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(244);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(245);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(245);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(246);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(246);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(247);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(247);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(248);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(248);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(249);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(249);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(250);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(250);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(251);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(251);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(252);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(252);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(253);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(253);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(254);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(254);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(255);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(255);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 DROP TABLE t;
 CREATE TABLE t (a CHAR(4));
@@ -3840,1262 +4601,1514 @@ ALTER TABLE t CHANGE COLUMN a b CHAR(3);
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(4);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(4);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(5);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(5);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(6);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(6);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(7);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(7);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(8);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(8);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(9);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(9);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(10);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(10);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(11);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(11);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(12);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(12);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(13);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(13);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(14);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(14);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(15);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(15);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(16);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(16);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(17);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(17);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(18);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(18);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(19);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(19);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(20);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(20);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(21);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(21);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(22);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(22);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(23);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(23);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(24);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(24);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(25);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(25);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(26);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(26);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(27);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(27);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(28);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(28);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(29);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(29);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(30);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(30);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(31);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(31);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(32);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(32);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(33);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(33);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(34);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(34);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(35);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(35);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(36);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(36);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(37);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(37);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(38);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(38);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(39);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(39);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(40);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(40);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(41);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(41);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(42);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(42);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(43);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(43);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(44);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(44);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(45);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(45);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(46);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(46);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(47);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(47);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(48);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(48);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(49);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(49);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(50);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(50);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(51);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(51);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(52);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(52);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(53);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(53);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(54);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(54);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(55);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(55);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(56);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(56);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(57);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(57);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(58);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(58);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(59);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(59);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(60);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(60);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(61);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(61);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(62);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(62);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(63);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(63);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(64);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(64);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(65);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(65);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(66);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(66);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(67);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(67);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(68);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(68);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(69);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(69);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(70);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(70);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(71);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(71);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(72);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(72);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(73);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(73);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(74);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(74);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(75);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(75);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(76);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(76);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(77);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(77);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(78);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(78);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(79);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(79);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(80);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(80);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(81);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(81);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(82);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(82);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(83);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(83);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(84);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(84);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(85);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(85);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(86);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(86);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(87);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(87);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(88);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(88);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(89);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(89);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(90);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(90);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(91);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(91);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(92);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(92);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(93);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(93);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(94);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(94);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(95);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(95);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(96);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(96);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(97);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(97);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(98);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(98);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(99);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(99);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(100);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(100);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(101);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(101);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(102);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(102);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(103);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(103);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(104);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(104);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(105);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(105);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(106);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(106);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(107);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(107);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(108);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(108);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(109);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(109);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(110);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(110);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(111);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(111);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(112);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(112);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(113);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(113);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(114);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(114);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(115);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(115);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(116);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(116);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(117);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(117);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(118);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(118);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(119);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(119);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(120);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(120);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(121);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(121);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(122);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(122);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(123);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(123);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(124);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(124);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(125);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(125);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(126);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(126);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(127);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(127);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(128);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(128);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(129);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(129);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(130);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(130);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(131);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(131);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(132);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(132);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(133);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(133);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(134);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(134);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(135);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(135);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(136);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(136);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(137);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(137);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(138);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(138);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(139);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(139);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(140);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(140);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(141);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(141);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(142);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(142);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(143);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(143);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(144);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(144);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(145);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(145);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(146);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(146);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(147);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(147);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(148);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(148);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(149);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(149);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(150);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(150);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(151);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(151);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(152);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(152);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(153);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(153);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(154);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(154);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(155);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(155);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(156);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(156);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(157);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(157);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(158);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(158);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(159);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(159);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(160);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(160);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(161);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(161);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(162);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(162);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(163);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(163);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(164);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(164);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(165);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(165);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(166);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(166);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(167);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(167);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(168);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(168);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(169);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(169);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(170);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(170);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(171);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(171);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(172);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(172);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(173);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(173);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(174);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(174);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(175);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(175);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(176);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(176);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(177);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(177);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(178);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(178);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(179);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(179);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(180);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(180);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(181);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(181);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(182);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(182);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(183);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(183);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(184);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(184);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(185);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(185);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(186);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(186);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(187);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(187);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(188);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(188);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(189);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(189);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(190);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(190);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(191);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(191);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(192);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(192);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(193);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(193);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(194);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(194);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(195);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(195);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(196);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(196);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(197);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(197);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(198);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(198);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(199);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(199);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(200);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(200);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(201);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(201);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(202);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(202);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(203);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(203);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(204);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(204);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(205);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(205);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(206);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(206);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(207);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(207);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(208);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(208);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(209);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(209);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(210);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(210);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(211);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(211);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(212);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(212);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(213);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(213);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(214);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(214);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(215);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(215);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(216);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(216);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(217);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(217);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(218);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(218);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(219);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(219);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(220);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(220);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(221);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(221);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(222);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(222);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(223);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(223);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(224);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(224);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(225);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(225);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(226);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(226);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(227);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(227);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(228);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(228);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(229);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(229);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(230);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(230);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(231);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(231);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(232);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(232);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(233);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(233);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(234);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(234);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(235);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(235);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(236);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(236);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(237);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(237);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(238);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(238);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(239);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(239);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(240);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(240);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(241);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(241);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(242);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(242);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(243);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(243);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(244);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(244);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(245);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(245);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(246);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(246);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(247);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(247);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(248);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(248);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(249);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(249);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(250);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(250);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(251);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(251);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(252);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(252);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(253);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(253);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(254);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(254);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(255);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(255);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 DROP TABLE t;
 CREATE TABLE t (a CHAR(5));
@@ -5114,1257 +6127,1508 @@ ALTER TABLE t CHANGE COLUMN a b CHAR(4);
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(5);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(5);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(6);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(6);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(7);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(7);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(8);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(8);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(9);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(9);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(10);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(10);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(11);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(11);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(12);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(12);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(13);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(13);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(14);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(14);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(15);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(15);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(16);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(16);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(17);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(17);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(18);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(18);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(19);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(19);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(20);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(20);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(21);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(21);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(22);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(22);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(23);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(23);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(24);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(24);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(25);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(25);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(26);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(26);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(27);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(27);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(28);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(28);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(29);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(29);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(30);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(30);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(31);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(31);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(32);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(32);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(33);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(33);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(34);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(34);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(35);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(35);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(36);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(36);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(37);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(37);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(38);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(38);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(39);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(39);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(40);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(40);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(41);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(41);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(42);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(42);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(43);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(43);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(44);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(44);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(45);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(45);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(46);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(46);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(47);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(47);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(48);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(48);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(49);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(49);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(50);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(50);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(51);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(51);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(52);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(52);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(53);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(53);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(54);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(54);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(55);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(55);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(56);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(56);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(57);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(57);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(58);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(58);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(59);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(59);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(60);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(60);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(61);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(61);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(62);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(62);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(63);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(63);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(64);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(64);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(65);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(65);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(66);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(66);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(67);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(67);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(68);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(68);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(69);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(69);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(70);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(70);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(71);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(71);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(72);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(72);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(73);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(73);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(74);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(74);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(75);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(75);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(76);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(76);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(77);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(77);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(78);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(78);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(79);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(79);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(80);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(80);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(81);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(81);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(82);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(82);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(83);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(83);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(84);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(84);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(85);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(85);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(86);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(86);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(87);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(87);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(88);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(88);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(89);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(89);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(90);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(90);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(91);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(91);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(92);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(92);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(93);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(93);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(94);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(94);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(95);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(95);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(96);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(96);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(97);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(97);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(98);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(98);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(99);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(99);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(100);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(100);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(101);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(101);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(102);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(102);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(103);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(103);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(104);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(104);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(105);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(105);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(106);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(106);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(107);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(107);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(108);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(108);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(109);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(109);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(110);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(110);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(111);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(111);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(112);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(112);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(113);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(113);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(114);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(114);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(115);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(115);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(116);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(116);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(117);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(117);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(118);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(118);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(119);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(119);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(120);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(120);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(121);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(121);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(122);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(122);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(123);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(123);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(124);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(124);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(125);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(125);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(126);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(126);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(127);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(127);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(128);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(128);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(129);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(129);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(130);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(130);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(131);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(131);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(132);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(132);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(133);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(133);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(134);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(134);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(135);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(135);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(136);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(136);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(137);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(137);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(138);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(138);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(139);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(139);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(140);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(140);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(141);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(141);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(142);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(142);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(143);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(143);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(144);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(144);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(145);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(145);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(146);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(146);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(147);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(147);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(148);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(148);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(149);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(149);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(150);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(150);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(151);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(151);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(152);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(152);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(153);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(153);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(154);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(154);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(155);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(155);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(156);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(156);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(157);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(157);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(158);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(158);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(159);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(159);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(160);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(160);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(161);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(161);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(162);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(162);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(163);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(163);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(164);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(164);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(165);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(165);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(166);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(166);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(167);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(167);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(168);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(168);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(169);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(169);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(170);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(170);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(171);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(171);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(172);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(172);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(173);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(173);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(174);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(174);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(175);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(175);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(176);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(176);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(177);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(177);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(178);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(178);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(179);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(179);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(180);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(180);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(181);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(181);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(182);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(182);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(183);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(183);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(184);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(184);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(185);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(185);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(186);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(186);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(187);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(187);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(188);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(188);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(189);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(189);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(190);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(190);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(191);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(191);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(192);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(192);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(193);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(193);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(194);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(194);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(195);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(195);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(196);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(196);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(197);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(197);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(198);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(198);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(199);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(199);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(200);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(200);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(201);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(201);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(202);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(202);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(203);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(203);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(204);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(204);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(205);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(205);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(206);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(206);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(207);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(207);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(208);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(208);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(209);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(209);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(210);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(210);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(211);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(211);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(212);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(212);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(213);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(213);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(214);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(214);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(215);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(215);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(216);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(216);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(217);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(217);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(218);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(218);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(219);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(219);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(220);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(220);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(221);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(221);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(222);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(222);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(223);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(223);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(224);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(224);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(225);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(225);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(226);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(226);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(227);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(227);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(228);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(228);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(229);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(229);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(230);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(230);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(231);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(231);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(232);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(232);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(233);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(233);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(234);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(234);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(235);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(235);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(236);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(236);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(237);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(237);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(238);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(238);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(239);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(239);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(240);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(240);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(241);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(241);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(242);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(242);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(243);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(243);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(244);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(244);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(245);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(245);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(246);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(246);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(247);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(247);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(248);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(248);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(249);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(249);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(250);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(250);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(251);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(251);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(252);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(252);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(253);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(253);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(254);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(254);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(255);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(255);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 DROP TABLE t;
 CREATE TABLE t (a CHAR(6));
@@ -6386,1252 +7650,1502 @@ ALTER TABLE t CHANGE COLUMN a b CHAR(5);
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(6);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(6);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(7);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(7);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(8);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(8);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(9);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(9);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(10);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(10);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(11);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(11);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(12);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(12);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(13);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(13);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(14);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(14);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(15);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(15);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(16);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(16);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(17);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(17);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(18);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(18);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(19);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(19);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(20);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(20);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(21);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(21);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(22);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(22);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(23);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(23);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(24);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(24);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(25);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(25);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(26);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(26);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(27);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(27);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(28);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(28);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(29);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(29);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(30);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(30);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(31);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(31);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(32);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(32);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(33);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(33);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(34);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(34);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(35);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(35);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(36);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(36);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(37);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(37);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(38);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(38);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(39);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(39);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(40);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(40);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(41);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(41);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(42);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(42);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(43);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(43);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(44);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(44);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(45);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(45);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(46);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(46);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(47);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(47);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(48);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(48);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(49);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(49);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(50);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(50);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(51);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(51);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(52);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(52);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(53);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(53);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(54);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(54);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(55);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(55);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(56);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(56);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(57);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(57);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(58);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(58);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(59);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(59);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(60);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(60);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(61);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(61);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(62);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(62);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(63);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(63);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(64);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(64);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(65);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(65);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(66);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(66);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(67);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(67);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(68);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(68);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(69);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(69);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(70);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(70);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(71);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(71);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(72);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(72);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(73);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(73);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(74);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(74);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(75);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(75);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(76);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(76);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(77);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(77);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(78);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(78);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(79);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(79);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(80);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(80);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(81);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(81);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(82);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(82);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(83);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(83);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(84);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(84);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(85);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(85);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(86);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(86);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(87);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(87);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(88);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(88);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(89);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(89);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(90);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(90);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(91);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(91);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(92);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(92);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(93);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(93);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(94);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(94);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(95);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(95);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(96);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(96);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(97);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(97);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(98);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(98);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(99);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(99);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(100);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(100);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(101);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(101);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(102);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(102);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(103);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(103);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(104);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(104);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(105);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(105);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(106);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(106);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(107);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(107);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(108);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(108);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(109);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(109);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(110);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(110);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(111);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(111);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(112);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(112);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(113);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(113);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(114);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(114);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(115);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(115);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(116);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(116);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(117);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(117);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(118);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(118);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(119);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(119);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(120);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(120);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(121);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(121);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(122);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(122);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(123);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(123);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(124);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(124);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(125);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(125);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(126);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(126);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(127);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(127);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(128);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(128);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(129);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(129);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(130);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(130);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(131);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(131);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(132);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(132);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(133);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(133);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(134);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(134);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(135);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(135);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(136);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(136);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(137);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(137);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(138);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(138);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(139);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(139);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(140);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(140);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(141);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(141);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(142);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(142);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(143);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(143);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(144);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(144);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(145);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(145);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(146);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(146);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(147);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(147);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(148);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(148);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(149);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(149);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(150);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(150);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(151);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(151);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(152);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(152);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(153);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(153);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(154);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(154);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(155);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(155);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(156);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(156);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(157);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(157);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(158);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(158);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(159);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(159);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(160);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(160);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(161);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(161);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(162);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(162);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(163);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(163);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(164);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(164);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(165);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(165);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(166);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(166);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(167);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(167);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(168);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(168);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(169);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(169);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(170);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(170);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(171);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(171);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(172);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(172);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(173);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(173);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(174);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(174);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(175);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(175);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(176);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(176);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(177);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(177);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(178);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(178);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(179);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(179);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(180);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(180);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(181);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(181);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(182);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(182);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(183);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(183);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(184);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(184);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(185);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(185);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(186);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(186);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(187);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(187);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(188);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(188);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(189);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(189);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(190);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(190);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(191);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(191);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(192);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(192);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(193);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(193);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(194);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(194);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(195);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(195);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(196);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(196);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(197);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(197);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(198);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(198);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(199);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(199);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(200);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(200);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(201);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(201);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(202);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(202);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(203);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(203);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(204);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(204);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(205);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(205);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(206);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(206);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(207);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(207);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(208);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(208);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(209);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(209);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(210);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(210);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(211);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(211);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(212);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(212);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(213);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(213);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(214);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(214);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(215);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(215);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(216);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(216);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(217);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(217);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(218);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(218);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(219);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(219);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(220);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(220);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(221);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(221);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(222);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(222);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(223);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(223);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(224);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(224);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(225);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(225);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(226);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(226);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(227);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(227);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(228);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(228);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(229);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(229);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(230);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(230);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(231);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(231);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(232);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(232);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(233);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(233);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(234);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(234);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(235);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(235);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(236);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(236);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(237);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(237);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(238);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(238);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(239);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(239);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(240);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(240);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(241);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(241);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(242);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(242);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(243);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(243);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(244);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(244);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(245);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(245);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(246);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(246);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(247);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(247);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(248);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(248);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(249);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(249);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(250);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(250);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(251);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(251);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(252);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(252);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(253);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(253);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(254);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(254);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(255);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(255);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 DROP TABLE t;
 CREATE TABLE t (a CHAR(7));
@@ -7656,1247 +9170,1496 @@ ALTER TABLE t CHANGE COLUMN a b CHAR(6);
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(7);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(7);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(8);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(8);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(9);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(9);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(10);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(10);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(11);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(11);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(12);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(12);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(13);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(13);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(14);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(14);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(15);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(15);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(16);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(16);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(17);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(17);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(18);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(18);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(19);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(19);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(20);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(20);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(21);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(21);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(22);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(22);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(23);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(23);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(24);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(24);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(25);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(25);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(26);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(26);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(27);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(27);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(28);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(28);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(29);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(29);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(30);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(30);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(31);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(31);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(32);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(32);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(33);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(33);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(34);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(34);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(35);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(35);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(36);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(36);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(37);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(37);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(38);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(38);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(39);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(39);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(40);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(40);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(41);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(41);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(42);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(42);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(43);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(43);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(44);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(44);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(45);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(45);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(46);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(46);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(47);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(47);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(48);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(48);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(49);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(49);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(50);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(50);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(51);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(51);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(52);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(52);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(53);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(53);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(54);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(54);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(55);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(55);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(56);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(56);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(57);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(57);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(58);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(58);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(59);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(59);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(60);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(60);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(61);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(61);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(62);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(62);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(63);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(63);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(64);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(64);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(65);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(65);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(66);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(66);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(67);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(67);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(68);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(68);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(69);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(69);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(70);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(70);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(71);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(71);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(72);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(72);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(73);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(73);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(74);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(74);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(75);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(75);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(76);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(76);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(77);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(77);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(78);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(78);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(79);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(79);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(80);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(80);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(81);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(81);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(82);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(82);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(83);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(83);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(84);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(84);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(85);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(85);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(86);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(86);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(87);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(87);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(88);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(88);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(89);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(89);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(90);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(90);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(91);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(91);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(92);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(92);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(93);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(93);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(94);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(94);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(95);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(95);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(96);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(96);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(97);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(97);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(98);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(98);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(99);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(99);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(100);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(100);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(101);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(101);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(102);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(102);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(103);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(103);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(104);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(104);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(105);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(105);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(106);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(106);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(107);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(107);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(108);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(108);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(109);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(109);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(110);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(110);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(111);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(111);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(112);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(112);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(113);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(113);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(114);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(114);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(115);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(115);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(116);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(116);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(117);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(117);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(118);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(118);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(119);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(119);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(120);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(120);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(121);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(121);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(122);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(122);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(123);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(123);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(124);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(124);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(125);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(125);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(126);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(126);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(127);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(127);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(128);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(128);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(129);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(129);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(130);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(130);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(131);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(131);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(132);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(132);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(133);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(133);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(134);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(134);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(135);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(135);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(136);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(136);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(137);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(137);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(138);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(138);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(139);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(139);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(140);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(140);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(141);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(141);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(142);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(142);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(143);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(143);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(144);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(144);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(145);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(145);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(146);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(146);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(147);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(147);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(148);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(148);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(149);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(149);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(150);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(150);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(151);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(151);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(152);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(152);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(153);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(153);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(154);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(154);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(155);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(155);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(156);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(156);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(157);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(157);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(158);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(158);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(159);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(159);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(160);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(160);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(161);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(161);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(162);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(162);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(163);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(163);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(164);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(164);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(165);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(165);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(166);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(166);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(167);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(167);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(168);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(168);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(169);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(169);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(170);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(170);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(171);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(171);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(172);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(172);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(173);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(173);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(174);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(174);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(175);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(175);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(176);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(176);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(177);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(177);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(178);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(178);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(179);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(179);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(180);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(180);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(181);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(181);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(182);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(182);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(183);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(183);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(184);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(184);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(185);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(185);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(186);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(186);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(187);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(187);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(188);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(188);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(189);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(189);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(190);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(190);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(191);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(191);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(192);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(192);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(193);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(193);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(194);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(194);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(195);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(195);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(196);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(196);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(197);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(197);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(198);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(198);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(199);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(199);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(200);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(200);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(201);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(201);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(202);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(202);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(203);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(203);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(204);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(204);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(205);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(205);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(206);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(206);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(207);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(207);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(208);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(208);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(209);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(209);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(210);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(210);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(211);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(211);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(212);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(212);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(213);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(213);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(214);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(214);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(215);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(215);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(216);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(216);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(217);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(217);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(218);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(218);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(219);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(219);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(220);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(220);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(221);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(221);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(222);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(222);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(223);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(223);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(224);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(224);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(225);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(225);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(226);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(226);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(227);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(227);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(228);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(228);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(229);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(229);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(230);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(230);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(231);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(231);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(232);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(232);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(233);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(233);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(234);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(234);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(235);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(235);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(236);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(236);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(237);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(237);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(238);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(238);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(239);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(239);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(240);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(240);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(241);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(241);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(242);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(242);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(243);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(243);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(244);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(244);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(245);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(245);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(246);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(246);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(247);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(247);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(248);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(248);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(249);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(249);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(250);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(250);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(251);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(251);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(252);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(252);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(253);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(253);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(254);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(254);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(255);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(255);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 DROP TABLE t;
 CREATE TABLE t (a CHAR(8));
@@ -8924,1242 +10687,1490 @@ ALTER TABLE t CHANGE COLUMN a b CHAR(7);
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(8);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(8);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(9);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(9);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(10);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(10);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(11);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(11);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(12);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(12);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(13);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(13);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(14);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(14);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(15);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(15);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(16);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(16);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(17);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(17);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(18);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(18);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(19);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(19);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(20);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(20);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(21);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(21);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(22);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(22);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(23);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(23);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(24);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(24);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(25);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(25);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(26);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(26);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(27);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(27);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(28);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(28);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(29);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(29);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(30);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(30);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(31);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(31);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(32);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(32);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(33);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(33);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(34);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(34);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(35);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(35);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(36);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(36);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(37);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(37);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(38);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(38);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(39);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(39);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(40);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(40);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(41);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(41);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(42);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(42);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(43);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(43);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(44);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(44);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(45);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(45);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(46);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(46);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(47);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(47);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(48);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(48);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(49);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(49);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(50);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(50);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(51);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(51);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(52);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(52);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(53);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(53);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(54);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(54);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(55);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(55);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(56);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(56);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(57);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(57);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(58);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(58);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(59);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(59);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(60);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(60);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(61);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(61);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(62);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(62);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(63);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(63);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(64);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(64);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(65);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(65);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(66);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(66);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(67);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(67);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(68);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(68);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(69);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(69);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(70);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(70);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(71);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(71);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(72);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(72);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(73);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(73);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(74);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(74);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(75);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(75);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(76);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(76);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(77);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(77);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(78);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(78);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(79);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(79);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(80);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(80);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(81);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(81);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(82);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(82);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(83);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(83);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(84);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(84);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(85);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(85);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(86);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(86);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(87);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(87);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(88);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(88);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(89);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(89);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(90);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(90);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(91);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(91);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(92);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(92);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(93);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(93);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(94);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(94);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(95);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(95);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(96);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(96);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(97);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(97);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(98);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(98);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(99);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(99);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(100);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(100);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(101);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(101);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(102);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(102);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(103);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(103);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(104);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(104);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(105);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(105);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(106);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(106);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(107);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(107);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(108);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(108);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(109);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(109);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(110);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(110);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(111);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(111);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(112);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(112);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(113);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(113);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(114);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(114);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(115);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(115);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(116);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(116);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(117);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(117);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(118);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(118);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(119);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(119);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(120);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(120);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(121);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(121);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(122);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(122);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(123);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(123);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(124);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(124);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(125);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(125);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(126);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(126);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(127);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(127);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(128);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(128);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(129);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(129);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(130);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(130);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(131);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(131);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(132);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(132);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(133);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(133);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(134);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(134);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(135);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(135);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(136);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(136);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(137);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(137);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(138);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(138);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(139);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(139);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(140);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(140);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(141);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(141);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(142);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(142);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(143);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(143);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(144);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(144);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(145);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(145);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(146);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(146);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(147);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(147);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(148);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(148);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(149);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(149);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(150);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(150);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(151);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(151);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(152);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(152);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(153);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(153);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(154);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(154);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(155);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(155);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(156);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(156);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(157);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(157);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(158);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(158);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(159);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(159);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(160);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(160);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(161);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(161);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(162);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(162);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(163);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(163);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(164);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(164);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(165);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(165);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(166);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(166);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(167);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(167);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(168);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(168);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(169);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(169);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(170);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(170);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(171);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(171);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(172);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(172);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(173);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(173);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(174);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(174);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(175);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(175);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(176);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(176);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(177);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(177);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(178);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(178);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(179);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(179);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(180);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(180);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(181);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(181);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(182);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(182);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(183);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(183);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(184);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(184);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(185);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(185);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(186);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(186);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(187);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(187);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(188);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(188);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(189);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(189);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(190);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(190);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(191);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(191);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(192);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(192);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(193);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(193);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(194);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(194);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(195);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(195);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(196);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(196);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(197);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(197);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(198);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(198);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(199);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(199);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(200);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(200);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(201);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(201);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(202);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(202);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(203);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(203);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(204);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(204);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(205);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(205);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(206);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(206);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(207);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(207);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(208);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(208);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(209);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(209);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(210);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(210);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(211);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(211);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(212);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(212);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(213);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(213);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(214);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(214);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(215);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(215);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(216);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(216);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(217);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(217);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(218);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(218);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(219);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(219);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(220);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(220);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(221);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(221);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(222);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(222);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(223);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(223);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(224);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(224);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(225);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(225);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(226);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(226);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(227);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(227);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(228);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(228);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(229);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(229);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(230);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(230);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(231);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(231);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(232);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(232);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(233);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(233);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(234);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(234);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(235);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(235);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(236);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(236);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(237);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(237);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(238);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(238);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(239);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(239);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(240);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(240);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(241);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(241);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(242);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(242);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(243);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(243);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(244);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(244);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(245);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(245);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(246);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(246);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(247);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(247);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(248);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(248);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(249);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(249);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(250);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(250);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(251);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(251);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(252);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(252);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(253);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(253);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(254);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(254);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(255);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(255);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 DROP TABLE t;
 CREATE TABLE t (a CHAR(16));
@@ -10211,1202 +12222,1442 @@ ALTER TABLE t CHANGE COLUMN a b CHAR(15);
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(16);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(16);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(17);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(17);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(18);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(18);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(19);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(19);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(20);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(20);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(21);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(21);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(22);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(22);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(23);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(23);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(24);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(24);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(25);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(25);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(26);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(26);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(27);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(27);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(28);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(28);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(29);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(29);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(30);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(30);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(31);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(31);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(32);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(32);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(33);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(33);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(34);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(34);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(35);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(35);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(36);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(36);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(37);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(37);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(38);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(38);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(39);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(39);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(40);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(40);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(41);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(41);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(42);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(42);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(43);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(43);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(44);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(44);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(45);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(45);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(46);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(46);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(47);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(47);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(48);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(48);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(49);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(49);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(50);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(50);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(51);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(51);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(52);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(52);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(53);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(53);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(54);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(54);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(55);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(55);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(56);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(56);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(57);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(57);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(58);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(58);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(59);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(59);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(60);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(60);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(61);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(61);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(62);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(62);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(63);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(63);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(64);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(64);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(65);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(65);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(66);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(66);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(67);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(67);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(68);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(68);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(69);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(69);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(70);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(70);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(71);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(71);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(72);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(72);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(73);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(73);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(74);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(74);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(75);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(75);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(76);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(76);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(77);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(77);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(78);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(78);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(79);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(79);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(80);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(80);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(81);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(81);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(82);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(82);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(83);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(83);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(84);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(84);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(85);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(85);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(86);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(86);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(87);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(87);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(88);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(88);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(89);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(89);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(90);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(90);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(91);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(91);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(92);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(92);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(93);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(93);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(94);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(94);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(95);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(95);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(96);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(96);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(97);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(97);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(98);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(98);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(99);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(99);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(100);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(100);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(101);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(101);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(102);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(102);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(103);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(103);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(104);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(104);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(105);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(105);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(106);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(106);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(107);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(107);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(108);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(108);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(109);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(109);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(110);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(110);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(111);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(111);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(112);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(112);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(113);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(113);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(114);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(114);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(115);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(115);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(116);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(116);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(117);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(117);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(118);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(118);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(119);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(119);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(120);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(120);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(121);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(121);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(122);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(122);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(123);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(123);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(124);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(124);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(125);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(125);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(126);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(126);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(127);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(127);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(128);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(128);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(129);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(129);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(130);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(130);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(131);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(131);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(132);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(132);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(133);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(133);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(134);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(134);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(135);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(135);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(136);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(136);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(137);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(137);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(138);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(138);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(139);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(139);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(140);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(140);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(141);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(141);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(142);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(142);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(143);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(143);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(144);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(144);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(145);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(145);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(146);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(146);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(147);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(147);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(148);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(148);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(149);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(149);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(150);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(150);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(151);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(151);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(152);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(152);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(153);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(153);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(154);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(154);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(155);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(155);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(156);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(156);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(157);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(157);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(158);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(158);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(159);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(159);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(160);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(160);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(161);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(161);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(162);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(162);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(163);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(163);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(164);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(164);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(165);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(165);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(166);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(166);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(167);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(167);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(168);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(168);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(169);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(169);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(170);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(170);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(171);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(171);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(172);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(172);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(173);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(173);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(174);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(174);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(175);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(175);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(176);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(176);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(177);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(177);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(178);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(178);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(179);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(179);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(180);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(180);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(181);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(181);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(182);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(182);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(183);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(183);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(184);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(184);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(185);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(185);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(186);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(186);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(187);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(187);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(188);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(188);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(189);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(189);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(190);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(190);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(191);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(191);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(192);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(192);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(193);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(193);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(194);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(194);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(195);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(195);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(196);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(196);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(197);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(197);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(198);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(198);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(199);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(199);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(200);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(200);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(201);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(201);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(202);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(202);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(203);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(203);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(204);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(204);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(205);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(205);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(206);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(206);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(207);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(207);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(208);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(208);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(209);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(209);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(210);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(210);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(211);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(211);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(212);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(212);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(213);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(213);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(214);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(214);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(215);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(215);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(216);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(216);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(217);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(217);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(218);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(218);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(219);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(219);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(220);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(220);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(221);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(221);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(222);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(222);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(223);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(223);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(224);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(224);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(225);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(225);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(226);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(226);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(227);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(227);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(228);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(228);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(229);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(229);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(230);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(230);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(231);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(231);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(232);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(232);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(233);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(233);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(234);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(234);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(235);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(235);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(236);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(236);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(237);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(237);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(238);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(238);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(239);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(239);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(240);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(240);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(241);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(241);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(242);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(242);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(243);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(243);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(244);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(244);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(245);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(245);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(246);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(246);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(247);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(247);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(248);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(248);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(249);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(249);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(250);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(250);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(251);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(251);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(252);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(252);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(253);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(253);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(254);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(254);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(255);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(255);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 DROP TABLE t;
 CREATE TABLE t (a CHAR(31));
@@ -11503,1127 +13754,1352 @@ ALTER TABLE t CHANGE COLUMN a b CHAR(30);
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(31);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(31);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(32);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(32);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(33);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(33);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(34);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(34);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(35);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(35);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(36);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(36);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(37);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(37);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(38);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(38);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(39);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(39);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(40);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(40);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(41);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(41);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(42);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(42);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(43);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(43);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(44);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(44);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(45);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(45);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(46);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(46);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(47);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(47);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(48);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(48);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(49);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(49);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(50);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(50);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(51);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(51);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(52);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(52);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(53);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(53);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(54);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(54);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(55);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(55);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(56);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(56);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(57);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(57);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(58);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(58);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(59);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(59);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(60);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(60);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(61);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(61);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(62);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(62);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(63);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(63);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(64);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(64);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(65);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(65);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(66);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(66);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(67);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(67);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(68);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(68);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(69);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(69);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(70);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(70);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(71);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(71);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(72);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(72);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(73);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(73);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(74);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(74);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(75);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(75);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(76);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(76);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(77);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(77);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(78);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(78);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(79);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(79);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(80);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(80);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(81);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(81);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(82);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(82);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(83);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(83);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(84);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(84);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(85);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(85);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(86);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(86);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(87);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(87);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(88);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(88);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(89);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(89);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(90);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(90);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(91);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(91);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(92);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(92);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(93);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(93);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(94);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(94);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(95);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(95);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(96);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(96);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(97);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(97);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(98);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(98);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(99);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(99);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(100);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(100);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(101);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(101);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(102);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(102);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(103);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(103);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(104);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(104);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(105);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(105);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(106);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(106);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(107);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(107);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(108);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(108);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(109);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(109);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(110);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(110);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(111);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(111);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(112);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(112);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(113);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(113);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(114);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(114);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(115);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(115);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(116);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(116);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(117);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(117);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(118);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(118);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(119);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(119);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(120);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(120);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(121);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(121);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(122);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(122);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(123);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(123);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(124);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(124);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(125);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(125);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(126);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(126);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(127);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(127);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(128);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(128);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(129);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(129);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(130);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(130);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(131);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(131);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(132);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(132);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(133);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(133);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(134);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(134);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(135);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(135);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(136);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(136);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(137);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(137);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(138);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(138);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(139);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(139);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(140);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(140);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(141);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(141);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(142);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(142);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(143);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(143);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(144);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(144);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(145);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(145);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(146);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(146);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(147);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(147);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(148);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(148);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(149);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(149);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(150);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(150);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(151);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(151);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(152);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(152);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(153);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(153);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(154);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(154);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(155);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(155);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(156);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(156);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(157);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(157);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(158);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(158);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(159);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(159);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(160);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(160);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(161);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(161);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(162);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(162);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(163);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(163);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(164);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(164);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(165);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(165);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(166);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(166);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(167);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(167);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(168);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(168);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(169);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(169);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(170);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(170);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(171);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(171);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(172);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(172);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(173);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(173);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(174);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(174);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(175);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(175);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(176);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(176);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(177);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(177);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(178);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(178);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(179);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(179);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(180);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(180);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(181);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(181);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(182);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(182);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(183);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(183);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(184);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(184);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(185);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(185);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(186);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(186);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(187);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(187);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(188);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(188);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(189);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(189);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(190);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(190);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(191);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(191);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(192);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(192);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(193);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(193);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(194);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(194);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(195);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(195);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(196);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(196);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(197);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(197);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(198);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(198);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(199);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(199);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(200);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(200);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(201);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(201);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(202);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(202);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(203);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(203);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(204);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(204);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(205);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(205);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(206);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(206);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(207);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(207);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(208);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(208);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(209);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(209);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(210);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(210);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(211);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(211);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(212);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(212);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(213);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(213);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(214);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(214);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(215);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(215);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(216);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(216);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(217);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(217);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(218);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(218);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(219);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(219);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(220);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(220);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(221);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(221);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(222);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(222);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(223);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(223);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(224);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(224);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(225);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(225);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(226);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(226);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(227);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(227);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(228);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(228);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(229);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(229);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(230);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(230);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(231);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(231);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(232);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(232);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(233);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(233);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(234);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(234);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(235);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(235);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(236);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(236);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(237);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(237);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(238);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(238);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(239);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(239);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(240);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(240);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(241);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(241);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(242);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(242);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(243);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(243);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(244);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(244);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(245);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(245);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(246);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(246);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(247);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(247);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(248);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(248);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(249);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(249);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(250);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(250);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(251);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(251);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(252);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(252);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(253);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(253);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(254);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(254);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(255);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(255);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 DROP TABLE t;
 CREATE TABLE t (a CHAR(32));
@@ -12723,1122 +15199,1346 @@ ALTER TABLE t CHANGE COLUMN a b CHAR(31);
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(32);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(32);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(33);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(33);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(34);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(34);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(35);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(35);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(36);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(36);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(37);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(37);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(38);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(38);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(39);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(39);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(40);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(40);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(41);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(41);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(42);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(42);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(43);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(43);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(44);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(44);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(45);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(45);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(46);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(46);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(47);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(47);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(48);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(48);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(49);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(49);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(50);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(50);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(51);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(51);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(52);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(52);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(53);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(53);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(54);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(54);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(55);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(55);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(56);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(56);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(57);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(57);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(58);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(58);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(59);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(59);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(60);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(60);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(61);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(61);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(62);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(62);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(63);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(63);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(64);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(64);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(65);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(65);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(66);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(66);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(67);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(67);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(68);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(68);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(69);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(69);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(70);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(70);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(71);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(71);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(72);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(72);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(73);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(73);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(74);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(74);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(75);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(75);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(76);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(76);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(77);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(77);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(78);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(78);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(79);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(79);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(80);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(80);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(81);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(81);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(82);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(82);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(83);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(83);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(84);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(84);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(85);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(85);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(86);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(86);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(87);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(87);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(88);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(88);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(89);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(89);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(90);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(90);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(91);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(91);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(92);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(92);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(93);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(93);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(94);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(94);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(95);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(95);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(96);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(96);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(97);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(97);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(98);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(98);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(99);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(99);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(100);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(100);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(101);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(101);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(102);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(102);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(103);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(103);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(104);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(104);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(105);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(105);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(106);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(106);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(107);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(107);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(108);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(108);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(109);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(109);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(110);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(110);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(111);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(111);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(112);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(112);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(113);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(113);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(114);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(114);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(115);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(115);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(116);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(116);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(117);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(117);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(118);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(118);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(119);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(119);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(120);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(120);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(121);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(121);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(122);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(122);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(123);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(123);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(124);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(124);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(125);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(125);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(126);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(126);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(127);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(127);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(128);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(128);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(129);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(129);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(130);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(130);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(131);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(131);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(132);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(132);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(133);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(133);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(134);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(134);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(135);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(135);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(136);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(136);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(137);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(137);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(138);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(138);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(139);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(139);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(140);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(140);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(141);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(141);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(142);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(142);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(143);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(143);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(144);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(144);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(145);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(145);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(146);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(146);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(147);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(147);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(148);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(148);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(149);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(149);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(150);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(150);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(151);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(151);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(152);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(152);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(153);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(153);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(154);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(154);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(155);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(155);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(156);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(156);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(157);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(157);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(158);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(158);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(159);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(159);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(160);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(160);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(161);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(161);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(162);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(162);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(163);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(163);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(164);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(164);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(165);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(165);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(166);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(166);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(167);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(167);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(168);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(168);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(169);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(169);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(170);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(170);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(171);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(171);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(172);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(172);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(173);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(173);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(174);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(174);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(175);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(175);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(176);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(176);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(177);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(177);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(178);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(178);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(179);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(179);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(180);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(180);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(181);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(181);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(182);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(182);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(183);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(183);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(184);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(184);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(185);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(185);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(186);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(186);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(187);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(187);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(188);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(188);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(189);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(189);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(190);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(190);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(191);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(191);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(192);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(192);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(193);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(193);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(194);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(194);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(195);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(195);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(196);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(196);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(197);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(197);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(198);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(198);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(199);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(199);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(200);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(200);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(201);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(201);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(202);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(202);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(203);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(203);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(204);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(204);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(205);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(205);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(206);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(206);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(207);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(207);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(208);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(208);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(209);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(209);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(210);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(210);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(211);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(211);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(212);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(212);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(213);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(213);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(214);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(214);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(215);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(215);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(216);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(216);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(217);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(217);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(218);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(218);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(219);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(219);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(220);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(220);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(221);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(221);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(222);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(222);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(223);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(223);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(224);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(224);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(225);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(225);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(226);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(226);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(227);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(227);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(228);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(228);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(229);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(229);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(230);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(230);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(231);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(231);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(232);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(232);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(233);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(233);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(234);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(234);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(235);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(235);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(236);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(236);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(237);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(237);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(238);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(238);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(239);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(239);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(240);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(240);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(241);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(241);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(242);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(242);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(243);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(243);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(244);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(244);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(245);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(245);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(246);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(246);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(247);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(247);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(248);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(248);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(249);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(249);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(250);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(250);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(251);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(251);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(252);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(252);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(253);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(253);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(254);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(254);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(255);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(255);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 DROP TABLE t;
 CREATE TABLE t (a CHAR(63));
@@ -14031,967 +16731,1160 @@ ALTER TABLE t CHANGE COLUMN a b CHAR(62);
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(63);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(63);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(64);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(64);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(65);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(65);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(66);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(66);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(67);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(67);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(68);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(68);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(69);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(69);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(70);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(70);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(71);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(71);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(72);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(72);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(73);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(73);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(74);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(74);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(75);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(75);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(76);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(76);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(77);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(77);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(78);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(78);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(79);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(79);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(80);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(80);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(81);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(81);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(82);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(82);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(83);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(83);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(84);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(84);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(85);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(85);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(86);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(86);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(87);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(87);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(88);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(88);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(89);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(89);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(90);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(90);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(91);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(91);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(92);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(92);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(93);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(93);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(94);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(94);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(95);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(95);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(96);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(96);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(97);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(97);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(98);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(98);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(99);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(99);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(100);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(100);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(101);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(101);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(102);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(102);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(103);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(103);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(104);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(104);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(105);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(105);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(106);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(106);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(107);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(107);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(108);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(108);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(109);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(109);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(110);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(110);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(111);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(111);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(112);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(112);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(113);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(113);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(114);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(114);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(115);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(115);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(116);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(116);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(117);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(117);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(118);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(118);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(119);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(119);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(120);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(120);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(121);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(121);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(122);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(122);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(123);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(123);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(124);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(124);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(125);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(125);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(126);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(126);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(127);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(127);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(128);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(128);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(129);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(129);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(130);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(130);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(131);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(131);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(132);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(132);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(133);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(133);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(134);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(134);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(135);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(135);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(136);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(136);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(137);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(137);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(138);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(138);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(139);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(139);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(140);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(140);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(141);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(141);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(142);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(142);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(143);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(143);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(144);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(144);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(145);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(145);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(146);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(146);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(147);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(147);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(148);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(148);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(149);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(149);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(150);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(150);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(151);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(151);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(152);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(152);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(153);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(153);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(154);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(154);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(155);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(155);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(156);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(156);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(157);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(157);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(158);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(158);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(159);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(159);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(160);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(160);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(161);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(161);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(162);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(162);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(163);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(163);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(164);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(164);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(165);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(165);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(166);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(166);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(167);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(167);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(168);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(168);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(169);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(169);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(170);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(170);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(171);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(171);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(172);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(172);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(173);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(173);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(174);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(174);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(175);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(175);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(176);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(176);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(177);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(177);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(178);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(178);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(179);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(179);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(180);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(180);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(181);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(181);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(182);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(182);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(183);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(183);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(184);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(184);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(185);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(185);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(186);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(186);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(187);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(187);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(188);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(188);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(189);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(189);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(190);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(190);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(191);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(191);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(192);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(192);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(193);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(193);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(194);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(194);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(195);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(195);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(196);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(196);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(197);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(197);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(198);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(198);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(199);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(199);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(200);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(200);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(201);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(201);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(202);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(202);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(203);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(203);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(204);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(204);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(205);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(205);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(206);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(206);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(207);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(207);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(208);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(208);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(209);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(209);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(210);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(210);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(211);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(211);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(212);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(212);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(213);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(213);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(214);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(214);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(215);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(215);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(216);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(216);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(217);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(217);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(218);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(218);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(219);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(219);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(220);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(220);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(221);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(221);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(222);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(222);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(223);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(223);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(224);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(224);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(225);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(225);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(226);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(226);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(227);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(227);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(228);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(228);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(229);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(229);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(230);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(230);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(231);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(231);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(232);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(232);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(233);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(233);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(234);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(234);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(235);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(235);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(236);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(236);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(237);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(237);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(238);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(238);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(239);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(239);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(240);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(240);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(241);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(241);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(242);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(242);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(243);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(243);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(244);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(244);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(245);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(245);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(246);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(246);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(247);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(247);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(248);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(248);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(249);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(249);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(250);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(250);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(251);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(251);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(252);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(252);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(253);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(253);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(254);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(254);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(255);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(255);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 DROP TABLE t;
 CREATE TABLE t (a CHAR(64));
@@ -15187,962 +18080,1154 @@ ALTER TABLE t CHANGE COLUMN a b CHAR(63);
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(64);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(64);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(65);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(65);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(66);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(66);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(67);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(67);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(68);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(68);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(69);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(69);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(70);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(70);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(71);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(71);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(72);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(72);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(73);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(73);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(74);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(74);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(75);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(75);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(76);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(76);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(77);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(77);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(78);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(78);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(79);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(79);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(80);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(80);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(81);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(81);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(82);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(82);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(83);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(83);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(84);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(84);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(85);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(85);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(86);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(86);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(87);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(87);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(88);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(88);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(89);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(89);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(90);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(90);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(91);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(91);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(92);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(92);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(93);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(93);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(94);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(94);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(95);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(95);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(96);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(96);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(97);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(97);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(98);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(98);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(99);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(99);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(100);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(100);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(101);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(101);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(102);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(102);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(103);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(103);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(104);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(104);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(105);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(105);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(106);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(106);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(107);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(107);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(108);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(108);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(109);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(109);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(110);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(110);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(111);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(111);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(112);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(112);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(113);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(113);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(114);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(114);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(115);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(115);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(116);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(116);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(117);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(117);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(118);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(118);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(119);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(119);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(120);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(120);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(121);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(121);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(122);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(122);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(123);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(123);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(124);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(124);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(125);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(125);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(126);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(126);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(127);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(127);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(128);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(128);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(129);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(129);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(130);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(130);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(131);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(131);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(132);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(132);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(133);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(133);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(134);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(134);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(135);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(135);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(136);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(136);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(137);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(137);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(138);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(138);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(139);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(139);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(140);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(140);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(141);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(141);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(142);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(142);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(143);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(143);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(144);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(144);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(145);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(145);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(146);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(146);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(147);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(147);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(148);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(148);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(149);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(149);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(150);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(150);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(151);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(151);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(152);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(152);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(153);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(153);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(154);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(154);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(155);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(155);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(156);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(156);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(157);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(157);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(158);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(158);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(159);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(159);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(160);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(160);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(161);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(161);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(162);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(162);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(163);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(163);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(164);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(164);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(165);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(165);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(166);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(166);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(167);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(167);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(168);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(168);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(169);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(169);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(170);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(170);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(171);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(171);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(172);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(172);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(173);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(173);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(174);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(174);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(175);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(175);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(176);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(176);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(177);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(177);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(178);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(178);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(179);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(179);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(180);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(180);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(181);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(181);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(182);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(182);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(183);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(183);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(184);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(184);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(185);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(185);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(186);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(186);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(187);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(187);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(188);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(188);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(189);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(189);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(190);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(190);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(191);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(191);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(192);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(192);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(193);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(193);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(194);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(194);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(195);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(195);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(196);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(196);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(197);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(197);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(198);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(198);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(199);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(199);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(200);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(200);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(201);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(201);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(202);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(202);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(203);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(203);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(204);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(204);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(205);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(205);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(206);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(206);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(207);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(207);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(208);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(208);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(209);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(209);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(210);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(210);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(211);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(211);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(212);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(212);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(213);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(213);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(214);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(214);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(215);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(215);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(216);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(216);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(217);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(217);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(218);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(218);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(219);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(219);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(220);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(220);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(221);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(221);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(222);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(222);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(223);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(223);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(224);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(224);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(225);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(225);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(226);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(226);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(227);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(227);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(228);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(228);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(229);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(229);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(230);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(230);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(231);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(231);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(232);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(232);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(233);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(233);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(234);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(234);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(235);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(235);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(236);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(236);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(237);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(237);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(238);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(238);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(239);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(239);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(240);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(240);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(241);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(241);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(242);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(242);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(243);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(243);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(244);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(244);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(245);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(245);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(246);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(246);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(247);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(247);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(248);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(248);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(249);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(249);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(250);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(250);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(251);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(251);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(252);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(252);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(253);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(253);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(254);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(254);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(255);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(255);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 DROP TABLE t;
 CREATE TABLE t (a CHAR(127));
@@ -16527,647 +19612,776 @@ ALTER TABLE t CHANGE COLUMN a b CHAR(126);
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(127);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(127);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(128);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(128);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(129);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(129);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(130);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(130);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(131);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(131);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(132);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(132);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(133);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(133);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(134);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(134);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(135);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(135);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(136);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(136);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(137);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(137);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(138);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(138);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(139);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(139);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(140);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(140);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(141);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(141);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(142);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(142);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(143);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(143);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(144);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(144);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(145);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(145);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(146);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(146);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(147);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(147);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(148);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(148);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(149);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(149);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(150);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(150);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(151);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(151);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(152);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(152);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(153);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(153);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(154);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(154);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(155);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(155);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(156);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(156);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(157);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(157);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(158);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(158);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(159);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(159);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(160);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(160);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(161);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(161);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(162);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(162);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(163);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(163);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(164);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(164);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(165);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(165);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(166);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(166);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(167);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(167);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(168);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(168);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(169);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(169);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(170);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(170);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(171);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(171);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(172);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(172);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(173);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(173);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(174);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(174);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(175);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(175);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(176);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(176);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(177);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(177);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(178);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(178);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(179);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(179);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(180);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(180);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(181);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(181);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(182);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(182);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(183);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(183);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(184);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(184);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(185);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(185);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(186);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(186);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(187);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(187);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(188);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(188);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(189);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(189);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(190);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(190);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(191);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(191);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(192);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(192);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(193);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(193);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(194);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(194);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(195);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(195);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(196);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(196);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(197);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(197);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(198);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(198);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(199);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(199);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(200);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(200);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(201);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(201);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(202);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(202);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(203);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(203);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(204);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(204);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(205);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(205);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(206);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(206);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(207);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(207);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(208);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(208);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(209);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(209);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(210);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(210);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(211);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(211);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(212);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(212);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(213);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(213);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(214);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(214);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(215);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(215);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(216);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(216);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(217);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(217);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(218);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(218);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(219);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(219);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(220);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(220);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(221);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(221);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(222);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(222);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(223);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(223);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(224);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(224);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(225);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(225);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(226);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(226);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(227);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(227);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(228);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(228);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(229);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(229);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(230);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(230);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(231);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(231);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(232);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(232);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(233);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(233);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(234);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(234);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(235);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(235);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(236);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(236);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(237);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(237);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(238);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(238);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(239);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(239);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(240);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(240);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(241);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(241);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(242);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(242);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(243);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(243);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(244);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(244);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(245);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(245);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(246);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(246);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(247);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(247);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(248);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(248);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(249);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(249);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(250);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(250);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(251);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(251);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(252);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(252);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(253);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(253);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(254);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(254);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(255);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(255);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 DROP TABLE t;
 CREATE TABLE t (a CHAR(128));
@@ -17555,642 +20769,770 @@ ALTER TABLE t CHANGE COLUMN a b CHAR(127);
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(128);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(128);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(129);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(129);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(130);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(130);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(131);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(131);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(132);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(132);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(133);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(133);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(134);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(134);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(135);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(135);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(136);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(136);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(137);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(137);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(138);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(138);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(139);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(139);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(140);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(140);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(141);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(141);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(142);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(142);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(143);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(143);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(144);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(144);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(145);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(145);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(146);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(146);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(147);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(147);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(148);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(148);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(149);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(149);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(150);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(150);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(151);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(151);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(152);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(152);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(153);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(153);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(154);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(154);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(155);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(155);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(156);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(156);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(157);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(157);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(158);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(158);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(159);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(159);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(160);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(160);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(161);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(161);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(162);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(162);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(163);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(163);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(164);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(164);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(165);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(165);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(166);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(166);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(167);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(167);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(168);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(168);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(169);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(169);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(170);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(170);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(171);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(171);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(172);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(172);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(173);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(173);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(174);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(174);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(175);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(175);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(176);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(176);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(177);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(177);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(178);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(178);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(179);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(179);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(180);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(180);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(181);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(181);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(182);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(182);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(183);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(183);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(184);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(184);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(185);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(185);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(186);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(186);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(187);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(187);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(188);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(188);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(189);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(189);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(190);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(190);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(191);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(191);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(192);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(192);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(193);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(193);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(194);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(194);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(195);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(195);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(196);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(196);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(197);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(197);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(198);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(198);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(199);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(199);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(200);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(200);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(201);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(201);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(202);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(202);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(203);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(203);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(204);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(204);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(205);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(205);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(206);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(206);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(207);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(207);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(208);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(208);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(209);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(209);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(210);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(210);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(211);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(211);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(212);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(212);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(213);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(213);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(214);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(214);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(215);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(215);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(216);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(216);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(217);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(217);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(218);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(218);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(219);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(219);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(220);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(220);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(221);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(221);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(222);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(222);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(223);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(223);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(224);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(224);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(225);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(225);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(226);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(226);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(227);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(227);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(228);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(228);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(229);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(229);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(230);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(230);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(231);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(231);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(232);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(232);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(233);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(233);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(234);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(234);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(235);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(235);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(236);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(236);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(237);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(237);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(238);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(238);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(239);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(239);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(240);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(240);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(241);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(241);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(242);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(242);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(243);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(243);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(244);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(244);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(245);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(245);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(246);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(246);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(247);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(247);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(248);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(248);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(249);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(249);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(250);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(250);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(251);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(251);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(252);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(252);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(253);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(253);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(254);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(254);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(255);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(255);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 DROP TABLE t;
 CREATE TABLE t (a CHAR(254));
@@ -18956,12 +22298,14 @@ ALTER TABLE t CHANGE COLUMN a b CHAR(253);
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(254);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(254);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(255);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(255);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 DROP TABLE t;
 CREATE TABLE t (a CHAR(255));
@@ -19730,6 +23074,7 @@ ALTER TABLE t CHANGE COLUMN a b CHAR(254);
 CREATE TABLE tt LIKE t;
 INSERT INTO tt SELECT * FROM t;
 ALTER TABLE t CHANGE COLUMN a b CHAR(255);
-SELECT * FROM t,tt where t.b = tt.a;
+ALTER TABLE t CHANGE COLUMN b a CHAR(255);
+SELECT * FROM t,tt where t.a = tt.a;
 DROP TABLE tt;
 DROP TABLE t;