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| author | Varun Gupta <varun.gupta@mariadb.com> | 2020-02-11 17:16:37 +0530 |
|---|---|---|
| committer | Varun Gupta <varun.gupta@mariadb.com> | 2020-02-12 20:16:23 +0530 |
| commit | f0606a7530a74579e73e9043c4204f830b5a168a (patch) | |
| tree | 71cc9ea829be723a54f4f65a151ddc491182f75b /mysql-test/main/order_by.test | |
| parent | 1a6f708ec594ac0ae2dd30db926ab07b100fa24b (diff) | |
| download | mariadb-git-f0606a7530a74579e73e9043c4204f830b5a168a.tar.gz | |
MDEV-21665: Server crashes in my_qsort2 / Filesort_buffer::sort_buffer
Allocation should use ALIGN_SIZE when we need to make sure that we
have atleast enough space to store one record in MERGEBUFF2 buffers
Diffstat (limited to 'mysql-test/main/order_by.test')
| -rw-r--r-- | mysql-test/main/order_by.test | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/mysql-test/main/order_by.test b/mysql-test/main/order_by.test index 19129c418b3..c283b805bee 100644 --- a/mysql-test/main/order_by.test +++ b/mysql-test/main/order_by.test @@ -2292,3 +2292,24 @@ set histogram_size=@tmp_h, histogram_type=@tmp_ht, use_stat_tables=@tmp_u, optimizer_use_condition_selectivity=@tmp_o; drop table t1,t2,t3,t4; + +--echo # +--echo # MDEV-21655: Server crashes in my_qsort2 / Filesort_buffer::sort_buffer +--echo # + +set @save_sql_mode= @@sql_mode; +set sql_mode= 'PAD_CHAR_TO_FULL_LENGTH'; +CREATE TABLE t1 ( a CHAR(255) charset utf8, + b CHAR(255) charset utf8, c TEXT); +INSERT INTO t1 VALUES +('1','a', 'a'), ('2','b', 'b'), ('3','c', 'c'), ('4','d','d'), +('5','e', 'e'), ('6','f', 'f'), ('7','g','g'), ('8','h','h'), +('9','i', 'i'), ('10','j','j'), ('11','k','k'), ('12','l','l'), +('13','m','m'), ('14','n','n'), ('15','o','o'); + +set sort_buffer_size=517*30; +select c from t1 order by a,b; + +set sql_mode= @save_sql_mode; + +drop table t1; |