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-rw-r--r--mysql-test/main/derived_split_innodb.result16
1 files changed, 16 insertions, 0 deletions
diff --git a/mysql-test/main/derived_split_innodb.result b/mysql-test/main/derived_split_innodb.result
index 2ca0de3bd91..aba4f88493c 100644
--- a/mysql-test/main/derived_split_innodb.result
+++ b/mysql-test/main/derived_split_innodb.result
@@ -823,5 +823,21 @@ a b a b a b grp_id count(*)
5 5 5 2 5 3 5 100
drop table t1,t2,t3;
drop table t10, t11;
+#
+# MDEV-31194: Server crash or assertion failure with join_cache_level=4
+# (a followup to the above bug, MDEV-26301)
+#
+CREATE TABLE t1 (a INT);
+INSERT INTO t1 VALUES (3),(4);
+CREATE TABLE t2 (id INT PRIMARY KEY) ENGINE=Aria;
+INSERT INTO t2 VALUES (1),(2);
+set @tmp1= @@optimizer_switch, @tmp2= @@join_cache_level;
+set
+optimizer_switch= 'derived_with_keys=off',
+join_cache_level= 4;
+SELECT t1.* FROM t1 JOIN (SELECT id, COUNT(*) FROM t2 GROUP BY id) sq ON sq.id= t1.a;
+a
+set optimizer_switch= @tmp1, join_cache_level= @tmp2;
+DROP TABLE t1, t2;
# End of 10.4 tests
SET GLOBAL innodb_stats_persistent=@save_innodb_stats_persistent;