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| author | Sergey Petrunya <psergey@askmonty.org> | 2014-02-15 01:21:46 +0400 |
|---|---|---|
| committer | Sergey Petrunya <psergey@askmonty.org> | 2014-02-15 01:21:46 +0400 |
| commit | 8c9b2f3429fd385ded604ec048f1fcbd89c3a846 (patch) | |
| tree | c114042bfa4eacc2c7afb3b54aba319fe11715f7 /mysql-test/r/subselect_sj_jcl6.result | |
| parent | 9d5731ef1b5a3f879d4234cddc694b629d823106 (diff) | |
| download | mariadb-git-8c9b2f3429fd385ded604ec048f1fcbd89c3a846.tar.gz | |
MDEV-5581: Server crashes in in JOIN::prepare on 2nd execution of PS with materialization+semijoin
- The problem was that JOIN::prepare() tried to set TABLE::maybe_null
for a table in join. Non-merged semi-join tables 1) are present as
join's base tables on second EXECUTE, but 2) do not yet have a TABLE
object.
Worked around the problem by putting mixed_implicit_grouping into JOIN
object, and then passing it to JTBM tables in setup_jtbm_semi_joins().
Diffstat (limited to 'mysql-test/r/subselect_sj_jcl6.result')
| -rw-r--r-- | mysql-test/r/subselect_sj_jcl6.result | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/mysql-test/r/subselect_sj_jcl6.result b/mysql-test/r/subselect_sj_jcl6.result index 55068ce257a..bc8fb3cf04a 100644 --- a/mysql-test/r/subselect_sj_jcl6.result +++ b/mysql-test/r/subselect_sj_jcl6.result @@ -2796,6 +2796,22 @@ db information_schema mysql DROP TABLE t1; +# +# MDEV-5581: Server crashes in in JOIN::prepare on 2nd execution of PS with materialization+semijoin +# +CREATE TABLE t1 (a INT); +INSERT INTO t1 VALUES (2),(3); +CREATE TABLE t2 (b INT); +INSERT INTO t2 VALUES (8),(9); +CREATE TABLE t3 (c INT, INDEX(c)); +INSERT INTO t2 VALUES (5),(6); +PREPARE stmt FROM +"SELECT * FROM t1 WHERE ( 9, 5 ) IN ( SELECT b, COUNT(*) FROM t2 WHERE 1 IN ( SELECT MIN(c) FROM t3 ) )"; +EXECUTE stmt; +a +EXECUTE stmt; +a +DROP TABLE t1,t2,t3; set optimizer_switch=@subselect_sj_tmp; # # BUG#49129: Wrong result with IN-subquery with join_cache_level=6 and firstmatch=off |