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| author | Sergey Petrunya <psergey@askmonty.org> | 2011-12-19 22:24:10 +0400 |
|---|---|---|
| committer | Sergey Petrunya <psergey@askmonty.org> | 2011-12-19 22:24:10 +0400 |
| commit | 15ea7238e42ea62da32c926c0a1667802f7646d9 (patch) | |
| tree | 9c894e5273b417b39635a10b113bf02c26aa2be6 /mysql-test/t/subselect_sj2_mat.test | |
| parent | be3e52984fe20f5aa7862cf9ace86beb588d3240 (diff) | |
| download | mariadb-git-15ea7238e42ea62da32c926c0a1667802f7646d9.tar.gz | |
BUG#906385: EXPLAIN EXTENDED crashes in TABLE_LIST::print with limited max_join_size
- Take into account that subquery's optimization can fail because of @@max_join_size error.
Diffstat (limited to 'mysql-test/t/subselect_sj2_mat.test')
| -rw-r--r-- | mysql-test/t/subselect_sj2_mat.test | 29 |
1 files changed, 29 insertions, 0 deletions
diff --git a/mysql-test/t/subselect_sj2_mat.test b/mysql-test/t/subselect_sj2_mat.test index fdfa0f311d3..7c3b37b517a 100644 --- a/mysql-test/t/subselect_sj2_mat.test +++ b/mysql-test/t/subselect_sj2_mat.test @@ -8,3 +8,32 @@ set optimizer_switch='mrr=on,mrr_sort_keys=on,index_condition_pushdown=on'; set optimizer_switch=default; select @@optimizer_switch like '%materialization=on%'; + +--echo # +--echo # BUG#906385: EXPLAIN EXTENDED crashes in TABLE_LIST::print with limited max_join_size +--echo # +CREATE TABLE t1 ( a INT ); +CREATE TABLE t2 ( b INT ); + +INSERT INTO t1 VALUES (1),(2); +INSERT INTO t2 VALUES + (1),(2),(3),(4),(5), + (6),(7),(8),(9),(10), + (11),(12),(13),(14),(15), + (16),(17),(18),(19),(20); + +set @tmp_906385=@@max_join_size; +SET max_join_size = 80; + +--error ER_TOO_BIG_SELECT +EXPLAIN EXTENDED +SELECT COUNT(*) FROM t1 +WHERE a IN + ( SELECT b FROM t2 GROUP BY b ) + AND ( 6 ) IN + ( SELECT MIN( t2.b ) FROM t2 alias1, t2 ); + +DROP TABLE t1, t2; +set max_join_size= @tmp_906385; + + |