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post-merge fix
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@@ -2353,6 +2353,27 @@ select * from t2,t3 where t2.s = t3.s;
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s s
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two two
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drop table t1, t2, t3;
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create table t1 (a integer, b integer, index(a), index(b));
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create table t2 (c integer, d integer, index(c), index(d));
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insert into t1 values (1,2), (2,2), (3,2), (4,2);
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insert into t2 values (1,3), (2,3), (3,4), (4,4);
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explain select * from t1 left join t2 on a=c where d in (4);
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id select_type table type possible_keys key key_len ref rows Extra
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1 SIMPLE t2 ref c,d d 5 const 2 Using where
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1 SIMPLE t1 ALL a NULL NULL NULL 3 Using where
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select * from t1 left join t2 on a=c where d in (4);
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a b c d
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3 2 3 4
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4 2 4 4
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explain select * from t1 left join t2 on a=c where d = 4;
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id select_type table type possible_keys key key_len ref rows Extra
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1 SIMPLE t2 ref c,d d 5 const 2 Using where
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1 SIMPLE t1 ALL a NULL NULL NULL 3 Using where
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select * from t1 left join t2 on a=c where d = 4;
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a b c d
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3 2 3 4
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4 2 4 4
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drop table t1, t2;
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CREATE TABLE t1 (
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i int(11) NOT NULL default '0',
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c char(10) NOT NULL default '',
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@@ -2365,45 +2386,4 @@ INSERT INTO t1 VALUES (3,'c');
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EXPLAIN SELECT i FROM t1 WHERE i=1;
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id select_type table type possible_keys key key_len ref rows Extra
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1 SIMPLE t1 const PRIMARY PRIMARY 4 const 1 Using index
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EXPLAIN SELECT i FROM t1 WHERE i=1;
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id select_type table type possible_keys key key_len ref rows Extra
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1 SIMPLE t1 const PRIMARY PRIMARY 4 const 1 Using index
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DROP TABLE t1;
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create table t1 (a integer, b integer, index(a), index(b));
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create table t2 (c integer, d integer, index(c), index(d));
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insert into t1 values (1,2), (2,2), (3,2), (4,2);
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insert into t2 values (1,3), (2,3), (3,4), (4,4);
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explain select * from t1 left join t2 on a=c where d in (4);
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table type possible_keys key key_len ref rows Extra
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t2 ref c,d d 5 const 2 Using where
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t1 ALL a NULL NULL NULL 3 Using where
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select * from t1 left join t2 on a=c where d in (4);
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a b c d
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3 2 3 4
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4 2 4 4
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explain select * from t1 left join t2 on a=c where d = 4;
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table type possible_keys key key_len ref rows Extra
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t2 ref c,d d 5 const 2 Using where
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t1 ALL a NULL NULL NULL 3 Using where
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select * from t1 left join t2 on a=c where d = 4;
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a b c d
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3 2 3 4
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4 2 4 4
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drop table t1, t2;
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CREATE TABLE t1 (
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i int(11) NOT NULL default '0',
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c char(10) NOT NULL default '',
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PRIMARY KEY (i),
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UNIQUE KEY c (c)
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) TYPE=MyISAM;
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INSERT INTO t1 VALUES (1,'a');
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INSERT INTO t1 VALUES (2,'b');
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INSERT INTO t1 VALUES (3,'c');
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EXPLAIN SELECT i FROM t1 WHERE i=1;
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table type possible_keys key key_len ref rows Extra
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t1 const PRIMARY PRIMARY 4 const 1 Using index
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EXPLAIN SELECT i FROM t1 WHERE i=1;
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table type possible_keys key key_len ref rows Extra
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t1 const PRIMARY PRIMARY 4 const 1 Using index
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>>>>>>>
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DROP TABLE t1;
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@@ -1929,6 +1929,4 @@ INSERT INTO t1 VALUES (3,'c');
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EXPLAIN SELECT i FROM t1 WHERE i=1;
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EXPLAIN SELECT i FROM t1 WHERE i=1;
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DROP TABLE t1;
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