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-rw-r--r--mysql-test/main/ctype_utf8.test7
1 files changed, 7 insertions, 0 deletions
diff --git a/mysql-test/main/ctype_utf8.test b/mysql-test/main/ctype_utf8.test
index 26fc491c568..1d244cf0096 100644
--- a/mysql-test/main/ctype_utf8.test
+++ b/mysql-test/main/ctype_utf8.test
@@ -2256,6 +2256,13 @@ INSERT INTO t1 VALUES (1);
SELECT x AS 5天内最近一次登录时间 FROM t1;
DROP TABLE t1;
+--echo #
+--echo # MDEV-22391 Assertion `0' failed in Item_type_holder::val_str on utf16 charset table query
+--echo #
+
+SET NAMES utf8;
+VALUES (_latin1 0xDF) UNION SELECT _utf8'a' COLLATE utf8_bin;
+VALUES (_latin1 0xDF) UNION VALUES(_utf8'a' COLLATE utf8_bin);
--echo #
--echo # End of 10.3 tests