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added test for BUG#3759
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@ -2327,3 +2327,24 @@ 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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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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@ -1874,3 +1874,17 @@ select * from t3 where s = 'one';
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select * from t1,t2 where t1.s = t2.s;
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select * from t2,t3 where t2.s = t3.s;
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drop table t1, t2, t3;
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#
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# Bug #3759
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# Both queries should produce identical plans and results.
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#
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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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select * from t1 left join t2 on a=c where d in (4);
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explain select * from t1 left join t2 on a=c where d = 4;
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select * from t1 left join t2 on a=c where d = 4;
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drop table t1, t2;
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