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Diffstat (limited to 'mysql-test/r/subselect_innodb.result')
| -rw-r--r-- | mysql-test/r/subselect_innodb.result | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/mysql-test/r/subselect_innodb.result b/mysql-test/r/subselect_innodb.result index bf97b9fc4eb..b311fa24eee 100644 --- a/mysql-test/r/subselect_innodb.result +++ b/mysql-test/r/subselect_innodb.result @@ -247,4 +247,28 @@ x NULL drop procedure p1; drop tables t1,t2,t3; +# +# LP BUG#827416: Crash in select_describe() on EXPLAIN with DISTINCT in nested subqueries +# +CREATE TABLE t3 ( b int) ENGINE=InnoDB; +CREATE TABLE t2 ( c int) ENGINE=InnoDB; +CREATE TABLE t1 ( a int NOT NULL , PRIMARY KEY (a)) ENGINE=InnoDB; +EXPLAIN SELECT * +FROM t1 +WHERE t1.a = ( +SELECT SUM( c ) +FROM t2 +WHERE (SELECT DISTINCT b FROM t3) > 0); +id select_type table type possible_keys key key_len ref rows Extra +1 PRIMARY t1 const PRIMARY PRIMARY 4 const 1 Using where; Using index +2 SUBQUERY t2 ALL NULL NULL NULL NULL 1 +3 SUBQUERY t3 ALL NULL NULL NULL NULL 1 Using temporary +SELECT * +FROM t1 +WHERE t1.a = ( +SELECT SUM( c ) +FROM t2 +WHERE (SELECT DISTINCT b FROM t3) > 0); +a +DROP TABLE t1, t2, t3; set optimizer_switch=@subselect_innodb_tmp; |