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-rw-r--r--mysql-test/t/create.test6
1 files changed, 6 insertions, 0 deletions
diff --git a/mysql-test/t/create.test b/mysql-test/t/create.test
index 10ee41ca2aa..0d260085129 100644
--- a/mysql-test/t/create.test
+++ b/mysql-test/t/create.test
@@ -1763,3 +1763,9 @@ drop function f1;
#
--error ER_TABLE_MUST_HAVE_COLUMNS
create table t1;
+
+#
+# MDEV-11231 Server crashes in check_duplicate_key on CREATE TABLE ... SELECT
+#
+create table t1 (i int, j int, key(i), key(i)) as select 1 as i, 2 as j;
+drop table t1;