MDEV-22610 Crash in INSERT INTO t1 (VALUES (DEFAULT) UNION VALUES (DEFAULT))

The fix for MDEV-21995 earlier fixed MDEV-22610. Adding tests only.

mysql-test/main/table_value_constr.result

@@ -2621,3 +2621,16 @@ EXECUTE IMMEDIATE 'VALUES (?)' USING IGNORE;
 ERROR HY000: 'ignore' is not allowed in this context
 EXECUTE IMMEDIATE 'VALUES (?)' USING DEFAULT;
 ERROR HY000: 'default' is not allowed in this context
+#
+# MDEV-22610 Crash in INSERT INTO t1 (VALUES (DEFAULT) UNION VALUES (DEFAULT))
+#
+VALUES (DEFAULT) UNION VALUES (DEFAULT);
+ERROR HY000: 'default' is not allowed in this context
+VALUES (IGNORE) UNION VALUES (IGNORE);
+ERROR HY000: 'ignore' is not allowed in this context
+CREATE TABLE t1 (a INT DEFAULT 10);
+INSERT INTO t1 (VALUES (DEFAULT) UNION VALUES (DEFAULT));
+ERROR HY000: 'default' is not allowed in this context
+INSERT INTO t1 (VALUES (IGNORE) UNION VALUES (IGNORE));
+ERROR HY000: 'ignore' is not allowed in this context
+DROP TABLE t1;

mysql-test/main/table_value_constr.test

@@ -1353,3 +1353,19 @@ VALUES (DEFAULT);
 EXECUTE IMMEDIATE 'VALUES (?)' USING IGNORE;
 --error ER_UNKNOWN_ERROR
 EXECUTE IMMEDIATE 'VALUES (?)' USING DEFAULT;
+
+
+--echo #
+--echo # MDEV-22610 Crash in INSERT INTO t1 (VALUES (DEFAULT) UNION VALUES (DEFAULT))
+--echo #
+
+--error ER_UNKNOWN_ERROR
+VALUES (DEFAULT) UNION VALUES (DEFAULT);
+--error ER_UNKNOWN_ERROR
+VALUES (IGNORE) UNION VALUES (IGNORE);
+CREATE TABLE t1 (a INT DEFAULT 10);
+--error ER_UNKNOWN_ERROR
+INSERT INTO t1 (VALUES (DEFAULT) UNION VALUES (DEFAULT));
+--error ER_UNKNOWN_ERROR
+INSERT INTO t1 (VALUES (IGNORE) UNION VALUES (IGNORE));
+DROP TABLE t1;