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MDEV-31181 Server crash in subselect_uniquesubquery_engine::print upon EXPLAIN EXTENDED DELETE

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Temporary fix to avoid the server crash.
This commit is contained in:
Oleksandr Byelkin
2023-05-04 08:11:00 +02:00
parent 62ec258f10
commit f5e7c56e32
3 changed files with 43 additions and 0 deletions
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19
mysql-test/main/explain_innodb.test
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@ -18,3 +18,22 @@ SELECT * FROM (SELECT id FROM t1 GROUP BY id) dt WHERE 1=0;
SET GLOBAL slow_query_log = @sql_tmp;
drop table t1;
--echo #
--echo # MDEV-31181: Server crash in subselect_uniquesubquery_engine::print
--echo # upon EXPLAIN EXTENDED DELETE
--echo #
CREATE TABLE t1 (a INT);
INSERT INTO t1 VALUES (1),(2);
CREATE TABLE t2 (pk INT PRIMARY KEY);
INSERT INTO t2 VALUES (1),(2);
EXPLAIN EXTENDED DELETE FROM t1 WHERE a IN (SELECT pk FROM t2);
drop table t1, t2;
--echo #
--echo # End of 10.4 tests
--echo #