select.result:
After merge fix
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71b731e92e
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@ -2400,14 +2400,6 @@ id select_type table type possible_keys key key_len ref rows Extra
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1 SIMPLE t1 ALL NULL NULL NULL NULL 5
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1 SIMPLE t1 ALL NULL NULL NULL NULL 5
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1 SIMPLE t2 ref a a 23 test.t1.a 2
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1 SIMPLE t2 ref a a 23 test.t1.a 2
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DROP TABLE t1, t2;
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DROP TABLE t1, t2;
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create table t1 (f1 int primary key, f2 int);
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create table t2 (f3 int, f4 int, primary key(f3,f4));
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insert into t1 values (1,1);
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insert into t2 values (1,1),(1,2);
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select distinct count(f2) >0 from t1 left join t2 on f1=f3 group by f1;
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count(f2) >0
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1
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drop table t1,t2;
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CREATE TABLE t1 ( city char(30) );
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CREATE TABLE t1 ( city char(30) );
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INSERT INTO t1 VALUES ('London');
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INSERT INTO t1 VALUES ('London');
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INSERT INTO t1 VALUES ('Paris');
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INSERT INTO t1 VALUES ('Paris');
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@ -2706,3 +2698,11 @@ a b c d
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1 2 2 1
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1 2 2 1
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1 2 3 1
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1 2 3 1
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DROP TABLE IF EXISTS t1, t2;
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DROP TABLE IF EXISTS t1, t2;
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create table t1 (f1 int primary key, f2 int);
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create table t2 (f3 int, f4 int, primary key(f3,f4));
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insert into t1 values (1,1);
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insert into t2 values (1,1),(1,2);
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select distinct count(f2) >0 from t1 left join t2 on f1=f3 group by f1;
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count(f2) >0
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1
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drop table t1,t2;
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