mirror of
https://github.com/MariaDB/server.git
synced 2025-01-16 12:02:42 +01:00
463 lines
13 KiB
Text
463 lines
13 KiB
Text
#
|
|
# Single table specific update/delete tests (mysql_update and mysql_delete)
|
|
#
|
|
|
|
# Tests will be skipped for the view protocol because the view protocol creates
|
|
# an additional util connection and other statistics data
|
|
-- source include/no_view_protocol.inc
|
|
|
|
--disable_ps2_protocol
|
|
--echo #
|
|
--echo # Bug #30584: delete with order by and limit clauses does not use
|
|
--echo # limit efficiently
|
|
--echo #
|
|
|
|
--disable_cursor_protocol
|
|
CREATE TABLE t1 (i INT);
|
|
INSERT INTO t1 VALUES (10),(11),(12),(13),(14),(15),(16),(17),(18),(19),
|
|
(20),(21),(22),(23),(24),(25);
|
|
|
|
CREATE TABLE t2(a INT, i INT PRIMARY KEY);
|
|
INSERT INTO t2 (i) SELECT i FROM t1;
|
|
|
|
FLUSH STATUS;
|
|
SELECT * FROM t2 WHERE i > 10 AND i <= 18 ORDER BY i LIMIT 5;
|
|
SHOW SESSION STATUS LIKE 'Sort%';
|
|
SHOW STATUS LIKE 'Handler_read_%';
|
|
|
|
FLUSH STATUS;
|
|
DELETE FROM t2 WHERE i > 10 AND i <= 18 ORDER BY i LIMIT 5;
|
|
SHOW SESSION STATUS LIKE 'Sort%';
|
|
SHOW STATUS LIKE 'Handler_read_%';
|
|
SELECT * FROM t2 WHERE i > 10 AND i <= 18 ORDER BY i;
|
|
|
|
DROP TABLE t2;
|
|
|
|
--echo #
|
|
--echo # index on field prefix:
|
|
--echo #
|
|
|
|
CREATE TABLE t2(a INT, i CHAR(2), INDEX(i(1)));
|
|
INSERT INTO t2 (i) SELECT i FROM t1;
|
|
|
|
FLUSH STATUS;
|
|
SELECT * FROM t2 WHERE i > 10 AND i <= 18 ORDER BY i LIMIT 5;
|
|
SHOW SESSION STATUS LIKE 'Sort%';
|
|
SHOW STATUS LIKE 'Handler_read_%';
|
|
|
|
FLUSH STATUS;
|
|
DELETE FROM t2 WHERE i > 10 AND i <= 18 ORDER BY i LIMIT 5;
|
|
SHOW SESSION STATUS LIKE 'Sort%';
|
|
SHOW STATUS LIKE 'Handler_read_%';
|
|
SELECT * FROM t2 WHERE i > 10 AND i <= 18 ORDER BY i;
|
|
|
|
DROP TABLE t2;
|
|
|
|
--echo #
|
|
--echo # constant inside ORDER BY list, should use filesort
|
|
--echo # on a small table
|
|
--echo #
|
|
|
|
CREATE TABLE t2(a INT, b INT, c INT, d INT, INDEX(a, b, c));
|
|
INSERT INTO t2 (a, b, c) SELECT i, i, i FROM t1;
|
|
|
|
FLUSH STATUS;
|
|
SELECT * FROM t2 WHERE b = 10 ORDER BY a, c LIMIT 5;
|
|
SHOW SESSION STATUS LIKE 'Sort%';
|
|
SHOW STATUS LIKE 'Handler_read_%';
|
|
|
|
let $cnt = `SELECT COUNT(*) FROM t2 WHERE b = 10`;
|
|
|
|
FLUSH STATUS;
|
|
DELETE FROM t2 WHERE b = 10 ORDER BY a, c LIMIT 5;
|
|
SHOW SESSION STATUS LIKE 'Sort%';
|
|
SHOW STATUS LIKE 'Handler_read_%';
|
|
--echo ## should be 5 (previous LIMIT)
|
|
eval SELECT $cnt - COUNT(*) FROM t2 WHERE b = 10;
|
|
|
|
DROP TABLE t2;
|
|
|
|
--echo #
|
|
--echo # same test as above (constant inside ORDER BY list), but with
|
|
--echo # a larger table - should not use filesort
|
|
--echo #
|
|
|
|
CREATE TABLE t2(a INT, b INT, c INT, d INT, INDEX(a, b, c));
|
|
INSERT INTO t2 (a, b, c) SELECT i, i, i FROM t1;
|
|
|
|
INSERT INTO t2 (a, b, c) SELECT t1.i, t1.i, t1.i FROM t1, t1 x1, t1 x2;
|
|
|
|
FLUSH STATUS;
|
|
SELECT * FROM t2 WHERE b = 10 ORDER BY a, c LIMIT 5;
|
|
SHOW SESSION STATUS LIKE 'Sort%';
|
|
SHOW STATUS LIKE 'Handler_read_%';
|
|
|
|
let $cnt = `SELECT COUNT(*) FROM t2 WHERE b = 10`;
|
|
|
|
FLUSH STATUS;
|
|
DELETE FROM t2 WHERE b = 10 ORDER BY a, c LIMIT 5;
|
|
SHOW SESSION STATUS LIKE 'Sort%';
|
|
SHOW STATUS LIKE 'Handler_read_%';
|
|
--echo ## should be 5 (previous LIMIT)
|
|
eval SELECT $cnt - COUNT(*) FROM t2 WHERE b = 10;
|
|
|
|
DROP TABLE t2;
|
|
|
|
--echo #
|
|
--echo # as above + partial index, should use filesort
|
|
--echo #
|
|
|
|
CREATE TABLE t2 (a CHAR(2), b CHAR(2), c CHAR(2), d CHAR(2), INDEX (a,b(1),c));
|
|
INSERT INTO t2 SELECT i, i, i, i FROM t1;
|
|
|
|
FLUSH STATUS;
|
|
SELECT * FROM t2 WHERE b = 10 ORDER BY a, c LIMIT 5;
|
|
SHOW SESSION STATUS LIKE 'Sort%';
|
|
SHOW STATUS LIKE 'Handler_read_%';
|
|
|
|
FLUSH STATUS;
|
|
DELETE FROM t2 WHERE b = 10 ORDER BY a, c LIMIT 5;
|
|
SHOW SESSION STATUS LIKE 'Sort%';
|
|
SHOW STATUS LIKE 'Handler_read_%';
|
|
SELECT * FROM t2 WHERE b = 10 ORDER BY a, c;
|
|
|
|
DROP TABLE t2;
|
|
|
|
--echo #
|
|
--echo # as above but index is without HA_READ_ORDER flag, should use filesort
|
|
--echo #
|
|
|
|
CREATE TABLE t2 (a CHAR(2), b CHAR(2), c CHAR(2), d CHAR(2), INDEX (a,b,c)) ENGINE=HEAP;
|
|
INSERT INTO t2 SELECT i, i, i, i FROM t1;
|
|
|
|
FLUSH STATUS;
|
|
SELECT * FROM t2 WHERE b = 10 ORDER BY a, c LIMIT 5;
|
|
SHOW SESSION STATUS LIKE 'Sort%';
|
|
SHOW STATUS LIKE 'Handler_read_%';
|
|
|
|
FLUSH STATUS;
|
|
DELETE FROM t2 WHERE b = 10 ORDER BY a, c LIMIT 5;
|
|
SHOW SESSION STATUS LIKE 'Sort%';
|
|
SHOW STATUS LIKE 'Handler_read_%';
|
|
SELECT * FROM t2 WHERE b = 10 ORDER BY a, c;
|
|
|
|
DROP TABLE t2;
|
|
|
|
--echo #
|
|
--echo # quick select is Index Merge, should use filesort
|
|
--echo #
|
|
|
|
CREATE TABLE t2 (i INT, key1 INT, key2 INT, INDEX (key1), INDEX (key2));
|
|
INSERT INTO t2 (key1, key2) SELECT i, i FROM t1;
|
|
INSERT INTO t2 (key1, key2) SELECT i+100, i+100 FROM t1;
|
|
|
|
FLUSH STATUS;
|
|
SELECT * FROM t2 WHERE key1 < 13 or key2 < 14 ORDER BY key1;
|
|
SHOW SESSION STATUS LIKE 'Sort%';
|
|
SHOW STATUS LIKE 'Handler_read_%';
|
|
--replace_column 1 x 2 x 3 x 4 x 5 x 6 x 7 x 8 x 9 x 10 x
|
|
EXPLAIN EXTENDED SELECT * FROM t2 WHERE key1 < 13 or key2 < 14 ORDER BY key1;
|
|
|
|
FLUSH STATUS;
|
|
DELETE FROM t2 WHERE key1 < 13 or key2 < 14 ORDER BY key1;
|
|
SHOW SESSION STATUS LIKE 'Sort%';
|
|
SHOW STATUS LIKE 'Handler_read_%';
|
|
SELECT * FROM t2 WHERE key1 < 13 or key2 < 14 ORDER BY key1;
|
|
--replace_column 1 x 2 x 3 x 4 x 5 x 6 x 7 x 8 x 9 x 10 x
|
|
EXPLAIN EXTENDED SELECT * FROM t2 WHERE key1 < 13 or key2 < 14 ORDER BY key1;
|
|
DROP TABLE t2;
|
|
|
|
--echo #
|
|
--echo # reverse quick select, should not use filesort
|
|
--echo #
|
|
|
|
CREATE TABLE t2(a INT, i INT PRIMARY KEY);
|
|
INSERT INTO t2 (i) SELECT i FROM t1;
|
|
|
|
FLUSH STATUS;
|
|
SELECT * FROM t2 WHERE i > 10 AND i <= 18 ORDER BY i DESC LIMIT 5;
|
|
SHOW SESSION STATUS LIKE 'Sort%';
|
|
SHOW STATUS LIKE 'Handler_read_%';
|
|
|
|
FLUSH STATUS;
|
|
DELETE FROM t2 WHERE i > 10 AND i <= 18 ORDER BY i DESC LIMIT 5;
|
|
SHOW SESSION STATUS LIKE 'Sort%';
|
|
SHOW STATUS LIKE 'Handler_read_%';
|
|
SELECT * FROM t2 WHERE i > 10 AND i <= 18 ORDER BY i;
|
|
|
|
DROP TABLE t2;
|
|
|
|
--echo #
|
|
--echo # mixed sorting direction, should use filesort
|
|
--echo #
|
|
|
|
CREATE TABLE t2 (a CHAR(2), b CHAR(2), c CHAR(2), INDEX (a, b));
|
|
INSERT INTO t2 SELECT i, i, i FROM t1;
|
|
|
|
FLUSH STATUS;
|
|
SELECT * FROM t2 ORDER BY a, b DESC LIMIT 5;
|
|
SHOW SESSION STATUS LIKE 'Sort%';
|
|
SHOW STATUS LIKE 'Handler_read_%';
|
|
|
|
FLUSH STATUS;
|
|
DELETE FROM t2 ORDER BY a, b DESC LIMIT 5;
|
|
SHOW SESSION STATUS LIKE 'Sort%';
|
|
SHOW STATUS LIKE 'Handler_read_%';
|
|
SELECT * FROM t2 ORDER BY a, b DESC;
|
|
|
|
DROP TABLE t2;
|
|
|
|
--echo #
|
|
--echo # LIMIT with no WHERE and DESC direction, should not use filesort
|
|
--echo #
|
|
|
|
CREATE TABLE t2 (a CHAR(2), b CHAR(2), c CHAR(2), INDEX (a, b));
|
|
INSERT INTO t2 (a, b) SELECT i, i FROM t1;
|
|
INSERT INTO t2 (a, b) SELECT t1.i, t1.i FROM t1, t1 x1, t1 x2;
|
|
|
|
FLUSH STATUS;
|
|
SELECT * FROM t2 ORDER BY a, b LIMIT 5;
|
|
SHOW SESSION STATUS LIKE 'Sort%';
|
|
SHOW STATUS LIKE 'Handler_read_%';
|
|
|
|
FLUSH STATUS;
|
|
SELECT * FROM t2 ORDER BY a DESC, b DESC LIMIT 5;
|
|
SHOW SESSION STATUS LIKE 'Sort%';
|
|
SHOW STATUS LIKE 'Handler_read_%';
|
|
|
|
FLUSH STATUS;
|
|
DELETE FROM t2 ORDER BY a DESC, b DESC LIMIT 5;
|
|
SHOW SESSION STATUS LIKE 'Sort%';
|
|
SHOW STATUS LIKE 'Handler_read_%';
|
|
SELECT * FROM t2 WHERE c = 10 ORDER BY a DESC, b DESC;
|
|
|
|
DROP TABLE t1, t2;
|
|
|
|
|
|
--echo #
|
|
--echo # Bug #36569: UPDATE ... WHERE ... ORDER BY... always does a filesort
|
|
--echo # even if not required
|
|
--echo #
|
|
|
|
CREATE TABLE t1 (i INT);
|
|
INSERT INTO t1 VALUES (10),(11),(12),(13),(14),(15),(16),(17),(18),(19),
|
|
(20),(21),(22),(23),(24),(25);
|
|
|
|
CREATE TABLE t2(a INT, i INT PRIMARY KEY);
|
|
INSERT INTO t2 (i) SELECT i FROM t1;
|
|
|
|
FLUSH STATUS;
|
|
SELECT * FROM t2 WHERE i > 10 AND i <= 18 ORDER BY i LIMIT 5;
|
|
SHOW SESSION STATUS LIKE 'Sort%';
|
|
SHOW STATUS LIKE 'Handler_read_%';
|
|
|
|
FLUSH STATUS;
|
|
UPDATE t2 SET a = 10 WHERE i > 10 AND i <= 18 ORDER BY i LIMIT 5;
|
|
SHOW SESSION STATUS LIKE 'Sort%';
|
|
SHOW STATUS LIKE 'Handler_read_%';
|
|
SELECT * FROM t2 WHERE i > 10 AND i <= 18 ORDER BY i;
|
|
|
|
DROP TABLE t2;
|
|
|
|
--echo #
|
|
--echo # index on field prefix:
|
|
--echo #
|
|
|
|
CREATE TABLE t2(a INT, i CHAR(2), INDEX(i(1)));
|
|
INSERT INTO t2 (i) SELECT i FROM t1;
|
|
|
|
FLUSH STATUS;
|
|
SELECT * FROM t2 WHERE i > 10 AND i <= 18 ORDER BY i LIMIT 5;
|
|
SHOW SESSION STATUS LIKE 'Sort%';
|
|
SHOW STATUS LIKE 'Handler_read_%';
|
|
|
|
FLUSH STATUS;
|
|
UPDATE t2 SET a = 10 WHERE i > 10 AND i <= 18 ORDER BY i LIMIT 5;
|
|
SHOW SESSION STATUS LIKE 'Sort%';
|
|
SHOW STATUS LIKE 'Handler_read_%';
|
|
SELECT * FROM t2 WHERE i > 10 AND i <= 18 ORDER BY i;
|
|
|
|
DROP TABLE t2;
|
|
|
|
--echo #
|
|
--echo # constant inside ORDER BY list, should use filesort
|
|
--echo # on a small table
|
|
--echo #
|
|
|
|
CREATE TABLE t2(a INT, b INT, c INT, d INT, INDEX(a, b, c));
|
|
INSERT INTO t2 (a, b, c) SELECT i, i, i FROM t1;
|
|
|
|
FLUSH STATUS;
|
|
SELECT * FROM t2 WHERE b = 10 ORDER BY a, c LIMIT 5;
|
|
SHOW SESSION STATUS LIKE 'Sort%';
|
|
SHOW STATUS LIKE 'Handler_read_%';
|
|
|
|
let $cnt = `SELECT COUNT(*) FROM t2 WHERE b = 10`;
|
|
|
|
FLUSH STATUS;
|
|
UPDATE t2 SET d = 10 WHERE b = 10 ORDER BY a, c LIMIT 5;
|
|
SHOW SESSION STATUS LIKE 'Sort%';
|
|
SHOW STATUS LIKE 'Handler_read_%';
|
|
--echo ## should be 5 (previous LIMIT)
|
|
SELECT COUNT(*) FROM t2 WHERE b = 10 AND d = 10 ORDER BY a, c;
|
|
|
|
DROP TABLE t2;
|
|
|
|
--echo #
|
|
--echo # same test as above (constant inside ORDER BY list), but with
|
|
--echo # a larger table - should not use filesort
|
|
--echo #
|
|
|
|
CREATE TABLE t2(a INT, b INT, c INT, d INT, INDEX(a, b, c));
|
|
INSERT INTO t2 (a, b, c) SELECT i, i, i FROM t1;
|
|
|
|
INSERT INTO t2 (a, b, c) SELECT t1.i, t1.i, t1.i FROM t1, t1 x1, t1 x2;
|
|
|
|
FLUSH STATUS;
|
|
SELECT * FROM t2 WHERE b = 10 ORDER BY a, c LIMIT 5;
|
|
SHOW SESSION STATUS LIKE 'Sort%';
|
|
SHOW STATUS LIKE 'Handler_read_%';
|
|
|
|
let $cnt = `SELECT COUNT(*) FROM t2 WHERE b = 10`;
|
|
|
|
FLUSH STATUS;
|
|
UPDATE t2 SET d = 10 WHERE b = 10 ORDER BY a, c LIMIT 5;
|
|
SHOW SESSION STATUS LIKE 'Sort%';
|
|
SHOW STATUS LIKE 'Handler_read_%';
|
|
--echo ## should be 5 (previous LIMIT)
|
|
SELECT COUNT(*) FROM t2 WHERE b = 10 AND d = 10 ORDER BY a, c;
|
|
|
|
DROP TABLE t2;
|
|
|
|
--echo #
|
|
--echo # as above + partial index, should use filesort
|
|
--echo #
|
|
|
|
CREATE TABLE t2 (a CHAR(2), b CHAR(2), c CHAR(2), d CHAR(2), INDEX (a,b(1),c));
|
|
INSERT INTO t2 SELECT i, i, i, i FROM t1;
|
|
|
|
FLUSH STATUS;
|
|
SELECT * FROM t2 WHERE b = 10 ORDER BY a, c LIMIT 5;
|
|
SHOW SESSION STATUS LIKE 'Sort%';
|
|
SHOW STATUS LIKE 'Handler_read_%';
|
|
|
|
FLUSH STATUS;
|
|
UPDATE t2 SET d = 10 WHERE b = 10 ORDER BY a, c LIMIT 5;
|
|
SHOW SESSION STATUS LIKE 'Sort%';
|
|
SHOW STATUS LIKE 'Handler_read_%';
|
|
SELECT * FROM t2 WHERE b = 10 ORDER BY a, c;
|
|
|
|
DROP TABLE t2;
|
|
|
|
--echo #
|
|
--echo # as above but index is without HA_READ_ORDER flag, should use filesort
|
|
--echo #
|
|
|
|
CREATE TABLE t2 (a CHAR(2), b CHAR(2), c CHAR(2), d CHAR(2), INDEX (a,b,c)) ENGINE=HEAP;
|
|
INSERT INTO t2 SELECT i, i, i, i FROM t1;
|
|
|
|
FLUSH STATUS;
|
|
SELECT * FROM t2 WHERE b = 10 ORDER BY a, c LIMIT 5;
|
|
SHOW SESSION STATUS LIKE 'Sort%';
|
|
SHOW STATUS LIKE 'Handler_read_%';
|
|
|
|
FLUSH STATUS;
|
|
UPDATE t2 SET d = 10 WHERE b = 10 ORDER BY a, c LIMIT 5;
|
|
SHOW SESSION STATUS LIKE 'Sort%';
|
|
SHOW STATUS LIKE 'Handler_read_%';
|
|
SELECT * FROM t2 WHERE b = 10 ORDER BY a, c;
|
|
|
|
DROP TABLE t2;
|
|
|
|
--echo #
|
|
--echo # quick select is Index Merge, should use filesort
|
|
--echo #
|
|
|
|
CREATE TABLE t2 (i INT, key1 INT, key2 INT, INDEX (key1), INDEX (key2));
|
|
INSERT INTO t2 (key1, key2) SELECT i, i FROM t1;
|
|
INSERT INTO t2 (key1, key2) SELECT i+100, i+100 FROM t1;
|
|
|
|
FLUSH STATUS;
|
|
SELECT * FROM t2 WHERE key1 < 13 or key2 < 14 ORDER BY key1;
|
|
SHOW SESSION STATUS LIKE 'Sort%';
|
|
SHOW STATUS LIKE 'Handler_read_%';
|
|
--replace_column 1 x 2 x 3 x 4 x 5 x 6 x 7 x 8 x 9 x 10 x
|
|
EXPLAIN EXTENDED SELECT * FROM t2 WHERE key1 < 13 or key2 < 14 ORDER BY key1;
|
|
|
|
FLUSH STATUS;
|
|
UPDATE t2 SET i = 123 WHERE key1 < 13 or key2 < 14 ORDER BY key1;
|
|
SHOW SESSION STATUS LIKE 'Sort%';
|
|
SHOW STATUS LIKE 'Handler_read_%';
|
|
SELECT * FROM t2 WHERE key1 < 13 or key2 < 14 ORDER BY key1;
|
|
--replace_column 1 x 2 x 3 x 4 x 5 x 6 x 7 x 8 x 9 x 10 x
|
|
EXPLAIN EXTENDED SELECT * FROM t2 WHERE key1 < 13 or key2 < 14 ORDER BY key1;
|
|
|
|
DROP TABLE t2;
|
|
|
|
--echo #
|
|
--echo # reverse quick select, should not use filesort
|
|
--echo #
|
|
|
|
CREATE TABLE t2(a INT, i INT PRIMARY KEY);
|
|
INSERT INTO t2 (i) SELECT i FROM t1;
|
|
|
|
FLUSH STATUS;
|
|
SELECT * FROM t2 WHERE i > 10 AND i <= 18 ORDER BY i DESC LIMIT 5;
|
|
SHOW SESSION STATUS LIKE 'Sort%';
|
|
SHOW STATUS LIKE 'Handler_read_%';
|
|
|
|
FLUSH STATUS;
|
|
UPDATE t2 SET a = 10 WHERE i > 10 AND i <= 18 ORDER BY i DESC LIMIT 5;
|
|
SHOW SESSION STATUS LIKE 'Sort%';
|
|
SHOW STATUS LIKE 'Handler_read_%';
|
|
SELECT * FROM t2 WHERE i > 10 AND i <= 18 ORDER BY i;
|
|
|
|
DROP TABLE t2;
|
|
|
|
--echo #
|
|
--echo # mixed sorting direction, should use filesort
|
|
--echo #
|
|
|
|
CREATE TABLE t2 (a CHAR(2), b CHAR(2), c CHAR(2), INDEX (a, b));
|
|
INSERT INTO t2 SELECT i, i, i FROM t1;
|
|
|
|
FLUSH STATUS;
|
|
SELECT * FROM t2 ORDER BY a, b DESC LIMIT 5;
|
|
SHOW SESSION STATUS LIKE 'Sort%';
|
|
SHOW STATUS LIKE 'Handler_read_%';
|
|
|
|
FLUSH STATUS;
|
|
UPDATE t2 SET c = 10 ORDER BY a, b DESC LIMIT 5;
|
|
SHOW SESSION STATUS LIKE 'Sort%';
|
|
SHOW STATUS LIKE 'Handler_read_%';
|
|
SELECT * FROM t2 WHERE c = 10 ORDER BY a, b DESC;
|
|
|
|
DROP TABLE t2;
|
|
|
|
--echo #
|
|
--echo # LIMIT with no WHERE and DESC direction, should not use filesort
|
|
--echo #
|
|
|
|
CREATE TABLE t2 (a CHAR(2), b CHAR(2), c CHAR(2), INDEX (a, b));
|
|
INSERT INTO t2 (a, b) SELECT i, i FROM t1;
|
|
INSERT INTO t2 (a, b) SELECT t1.i, t1.i FROM t1, t1 x1, t1 x2;
|
|
|
|
FLUSH STATUS;
|
|
SELECT * FROM t2 ORDER BY a, b LIMIT 5;
|
|
SHOW SESSION STATUS LIKE 'Sort%';
|
|
SHOW STATUS LIKE 'Handler_read_%';
|
|
|
|
FLUSH STATUS;
|
|
SELECT * FROM t2 ORDER BY a DESC, b DESC LIMIT 5;
|
|
SHOW SESSION STATUS LIKE 'Sort%';
|
|
SHOW STATUS LIKE 'Handler_read_%';
|
|
|
|
FLUSH STATUS;
|
|
UPDATE t2 SET c = 10 ORDER BY a DESC, b DESC LIMIT 5;
|
|
SHOW SESSION STATUS LIKE 'Sort%';
|
|
SHOW STATUS LIKE 'Handler_read_%';
|
|
SELECT * FROM t2 WHERE c = 10 ORDER BY a DESC, b DESC;
|
|
|
|
DROP TABLE t1, t2;
|
|
--enable_ps2_protocol
|
|
--enable_cursor_protocol
|