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removed wrong distinct UNION detection (BUG#6565)

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bell@sanja.is.com.ua
2005-02-14 02:06:21 +02:00
parent 961d8b0ebf
commit 2d3076b69d
3 changed files with 39 additions and 2 deletions
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19
mysql-test/r/derived.result
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@@ -339,3 +339,22 @@ select distinct sum(b) from (select a,b from t1) y group by a;
sum(b)
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drop table t1;
create table t1(a int);
create table t2(a int);
create table t3(a int);
insert into t1 values(1),(1);
insert into t2 values(2),(2);
insert into t3 values(3),(3);
select * from t1 union distinct select * from t2 union all select * from t3;
a
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select * from (select * from t1 union distinct select * from t2 union all select * from t3) X;
a
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drop table t1, t2, t3;