SET sql_mode=ORACLE;

--echo #
--echo # MDEV-15975 PL/SQL parser does not understand historical queries
--echo #

CREATE TABLE t1 (a INT) WITH SYSTEM VERSIONING;
INSERT INTO t1 VALUES (10);
DELETE FROM t1;
INSERT INTO t1 VALUES (20);
SELECT * FROM t1 FOR SYSTEM_TIME ALL;
SELECT * FROM t1 FOR SYSTEM_TIME AS OF (NOW()+INTERVAL 10 YEAR);
DROP TABLE t1;

--echo #
--echo # MDEV-17959 Assertion `opt_bootstrap || mysql_parse_status || thd->lex->select_stack_top == 0' failed in parse_sql upon DELETE HISTORY under ORACLE mode
--echo #

SET SQL_MODE= ORACLE;
CREATE TABLE t1 (a INT);
--error ER_VERS_NOT_VERSIONED
DELETE HISTORY FROM t1;
DROP TABLE t1;