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Code Activity

removed wrong distinct UNION detection (BUG#6565)

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mysql-test/r/derived.result:
  test of union subquery in the FROM clause with complex distinct/all
mysql-test/t/derived.test:
  test of union subquery in the FROM clause with complex distinct/all
sql/sql_derived.cc:
  removed wrong distinct UNION detection
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2005-02-14 02:06:21 +02:00
parent 0d57871425
commit f048032c68
3 changed files with 39 additions and 2 deletions
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12
mysql-test/t/derived.test
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@ -224,3 +224,15 @@ select distinct sum(b) from t1 group by a;
select distinct sum(b) from (select a,b from t1) y group by a;
drop table t1;
#
# test of union subquery in the FROM clause with complex distinct/all (BUG#6565)
#
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;
select * from (select * from t1 union distinct select * from t2 union all select * from t3) X;
drop table t1, t2, t3;