Bug#18439019 Assert in mysql_multi_update with ordered view

Adding test case.

Author: roylyseng

mysql-test/r/delete.result

@@ -731,3 +731,12 @@ ORDER BY INNR1 . col_datetime_key
 ERROR 21000: Subquery returns more than 1 row
 DROP TABLE t1, t2, t3, t4, t5;
 SET sql_mode=default;
+# Bug#20450013 assertion 'select_lex::having_cond() == __null ...
+CREATE TABLE t1(a TEXT, FULLTEXT (a));
+CREATE VIEW v1 AS SELECT a FROM t1 ORDER BY a;
+explain DELETE FROM t1 USING v1,t1;
+id	select_type	table	partitions	type	possible_keys	key	key_len	ref	rows	filtered	Extra
+1	DELETE	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	no matching row in const table
+DELETE FROM t1 USING v1,t1;
+DROP VIEW v1;
+DROP TABLE t1;

mysql-test/r/update.result

@@ -605,3 +605,23 @@ Variable_name	Value
 Handler_update	5
 ROLLBACK;
 DROP TABLE t1, t2;
+# Bug#18439019 Assert in mysql_multi_update with ordered view
+CREATE TABLE t1 (
+a int unsigned not null auto_increment primary key,
+b int unsigned
+) ENGINE=MyISAM;
+CREATE TABLE t2 (
+a int unsigned not null auto_increment primary key,
+b int unsigned
+) ENGINE=MyISAM;
+INSERT INTO t1 VALUES (NULL, 0);
+INSERT INTO t1 SELECT NULL, 0 FROM t1;
+INSERT INTO t2 VALUES (NULL, 0), (NULL,1);
+CREATE VIEW v1 AS SELECT a FROM t1 ORDER BY a;
+explain UPDATE t2, v1 AS t SET t2.b = t.a+5 ;
+id	select_type	table	partitions	type	possible_keys	key	key_len	ref	rows	filtered	Extra
+1	UPDATE	t2	NULL	ALL	NULL	NULL	NULL	NULL	2	100.00	NULL
+1	SIMPLE	t1	NULL	index	NULL	PRIMARY	4	NULL	2	100.00	Using index
+UPDATE t2, v1 AS t SET t2.b = t.a+5 ;
+DROP VIEW v1;
+DROP TABLE t1, t2;

mysql-test/t/delete.test

@@ -816,3 +816,17 @@ WHERE OUTR1 . pk <> (
 DROP TABLE t1, t2, t3, t4, t5;
 
 SET sql_mode=default;
+
+--echo # Bug#20450013 assertion 'select_lex::having_cond() == __null ...
+
+CREATE TABLE t1(a TEXT, FULLTEXT (a));
+CREATE VIEW v1 AS SELECT a FROM t1 ORDER BY a;
+
+let $query=
+DELETE FROM t1 USING v1,t1;
+
+eval explain $query;
+eval $query;
+
+DROP VIEW v1;
+DROP TABLE t1;

mysql-test/t/update.test

@@ -546,3 +546,31 @@ UPDATE t2 SET c = 10 ORDER BY a, b DESC LIMIT 5;
 SHOW STATUS LIKE 'HANDLER_UPDATE';
 ROLLBACK;
 DROP TABLE t1, t2;
+
+--echo # Bug#18439019 Assert in mysql_multi_update with ordered view
+
+CREATE TABLE t1 (
+a int unsigned not null auto_increment primary key,
+b int unsigned
+) ENGINE=MyISAM;
+
+CREATE TABLE t2 (
+a int unsigned not null auto_increment primary key,
+b int unsigned
+) ENGINE=MyISAM;
+
+INSERT INTO t1 VALUES (NULL, 0);
+INSERT INTO t1 SELECT NULL, 0 FROM t1;
+INSERT INTO t2 VALUES (NULL, 0), (NULL,1);
+
+CREATE VIEW v1 AS SELECT a FROM t1 ORDER BY a;
+
+let $query=
+UPDATE t2, v1 AS t SET t2.b = t.a+5 ;
+
+eval explain $query;
+eval $query;
+
+DROP VIEW v1;
+DROP TABLE t1, t2;
+