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Merge timka@10.100.64.80:/home/timka/mysql/src/4.1-bug-21787

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into  dl145s.mysql.com:/data/tkatchaounov/5.0-bug-21787
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timour/tkatchaounov@dl145s.mysql.com
2006-09-01 14:29:27 +02:00
parent 30ef47a93c 02e194cea2
commit 462c22c1ae
3 changed files with 38 additions and 7 deletions
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10
mysql-test/t/limit.test
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@ -60,4 +60,14 @@ select 1 as a from t1 union all select 1 from dual limit 1;
(select 1 as a from t1) union all (select 1 from dual) limit 1;
drop table t1;
#
# Bug #21787: COUNT(*) + ORDER BY + LIMIT returns wrong result
#
create table t1 (a int);
insert into t1 values (1),(2),(3),(4),(5),(6),(7);
explain select count(*) c FROM t1 WHERE a > 0 ORDER BY c LIMIT 3;
select count(*) c FROM t1 WHERE a > 0 ORDER BY c LIMIT 3;
explain select sum(a) c FROM t1 WHERE a > 0 ORDER BY c LIMIT 3;
select sum(a) c FROM t1 WHERE a > 0 ORDER BY c LIMIT 3;
# End of 4.1 tests