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2dc02f2424
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210243480c
2 changed files with 43 additions and 0 deletions
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@ -824,6 +824,23 @@ a
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2
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1
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DROP TABLE t1;
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CREATE TABLE t1 (
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f1 int(10) unsigned NOT NULL auto_increment primary key,
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f2 varchar(100) NOT NULL default ''
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);
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CREATE TABLE t2 (
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f1 varchar(10) NOT NULL default '',
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f2 char(3) NOT NULL default '',
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PRIMARY KEY (`f1`),
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KEY `k1` (`f2`,`f1`)
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);
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INSERT INTO t1 values(NULL, '');
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INSERT INTO `t2` VALUES ('486878','WDT'),('486910','WDT');
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SELECT SQL_BUFFER_RESULT avg(t2.f1) FROM t1, t2 where t2.f2 = 'SIR' GROUP BY t1.f1;
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avg(t2.f1)
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SELECT avg(t2.f1) FROM t1, t2 where t2.f2 = 'SIR' GROUP BY t1.f1;
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avg(t2.f1)
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DROP TABLE t1, t2;
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create table t1 (c1 char(3), c2 char(3));
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create table t2 (c3 char(3), c4 char(3));
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insert into t1 values ('aaa', 'bb1'), ('aaa', 'bb2');
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@ -699,6 +699,32 @@ Handler_read_prev 0
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Handler_read_rnd 0
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Handler_read_rnd_next 1
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DROP TABLE t1;
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CREATE TABLE t1 (
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f1 int(10) unsigned NOT NULL auto_increment PRIMARY KEY,
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f2 varchar(100) NOT NULL default ''
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);
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CREATE TABLE t2 (
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f1 varchar(10) NOT NULL default '',
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f2 char(3) NOT NULL default '',
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PRIMARY KEY (`f1`),
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KEY `k1` (`f2`, `f1`)
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);
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INSERT INTO t1 values(NULL, '');
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INSERT INTO `t2` VALUES ('486878','WDT'),('486910','WDT');
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SELECT COUNT(*) FROM t1;
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COUNT(*)
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1
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SELECT min(t2.f1) FROM t1, t2 where t2.f2 = 'SIR' GROUP BY t1.f1;
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min(t2.f1)
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INSERT INTO t1 (f2)
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SELECT min(t2.f1) FROM t1, t2 where t2.f2 = 'SIR' GROUP BY t1.f1;
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SELECT COUNT(*) FROM t1;
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COUNT(*)
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1
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SELECT * FROM t1;
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f1 f2
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1
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DROP TABLE t1, t2;
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CREATE TABLE t1 (x int, y int);
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CREATE TABLE t2 (z int, y int);
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CREATE TABLE t3 (a int, b int);
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