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| author | Sergey Petrunya <psergey@askmonty.org> | 2013-10-10 20:30:32 +0400 |
|---|---|---|
| committer | Sergey Petrunya <psergey@askmonty.org> | 2013-10-10 20:30:32 +0400 |
| commit | 094f70fd1908c17c0ebc4b6942e3bebed0a236ba (patch) | |
| tree | 4058348c37c0ec18249690e111a9cb1a13c55b16 /mysql-test/r | |
| parent | 582ecb2a253ed2c9e26a2e61102da4bf4ede72d3 (diff) | |
| download | mariadb-git-094f70fd1908c17c0ebc4b6942e3bebed0a236ba.tar.gz | |
MDEV-5106: Server crashes in Explain_union::print_explain on ER_TOO_BIG_SELECT
- Don't save UNION's EXPLAIN data if optimization failed with
an error. We could end up saving incomplete plan, which will
cause a crash when we attempt to print it.
Diffstat (limited to 'mysql-test/r')
| -rw-r--r-- | mysql-test/r/explain_slowquerylog.result | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/mysql-test/r/explain_slowquerylog.result b/mysql-test/r/explain_slowquerylog.result index 62c742c5932..9d25cf06275 100644 --- a/mysql-test/r/explain_slowquerylog.result +++ b/mysql-test/r/explain_slowquerylog.result @@ -26,3 +26,16 @@ SELECT 1; EXPLAIN PARTITIONS SELECT 1 ; id select_type table partitions type possible_keys key key_len ref rows Extra 1 SIMPLE NULL NULL NULL NULL NULL NULL NULL NULL No tables used +# +# MDEV-5106: Server crashes in Explain_union::print_explain on ER_TOO_BIG_SELECT with explain in slow log +# +CREATE TABLE t1 (i INT) ENGINE=MyISAM; +INSERT INTO t1 VALUES +(1),(2),(3),(4),(5),(6),(7),(8),(9),(10); +SET max_join_size = 10; +( SELECT ta.* FROM t1 ta, t1 tb ) UNION ( SELECT * FROM t1 ); +ERROR 42000: The SELECT would examine more than MAX_JOIN_SIZE rows; check your WHERE and use SET SQL_BIG_SELECTS=1 or SET MAX_JOIN_SIZE=# if the SELECT is okay +SELECT 'Server still alive?' as 'Yes'; +Yes +Server still alive? +DROP TABLE t1; |