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Diffstat (limited to 'mysql-test/t/limit.test')
| -rw-r--r-- | mysql-test/t/limit.test | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/mysql-test/t/limit.test b/mysql-test/t/limit.test index 6df865278f6..cf7789428b2 100644 --- a/mysql-test/t/limit.test +++ b/mysql-test/t/limit.test @@ -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 |