From 9bcd0f5fea8ca26742b10d37b95a966c69909ff1 Mon Sep 17 00:00:00 2001 From: Igor Babaev Date: Mon, 7 May 2018 13:22:00 -0700 Subject: Added the test case from MDEV-16086 tfixed by the patch for MDEV-15575 --- mysql-test/t/cte_recursive.test | 32 ++++++++++++++++++++++++++++++++ 1 file changed, 32 insertions(+) (limited to 'mysql-test/t') diff --git a/mysql-test/t/cte_recursive.test b/mysql-test/t/cte_recursive.test index 332a64b30de..3a8795e114a 100644 --- a/mysql-test/t/cte_recursive.test +++ b/mysql-test/t/cte_recursive.test @@ -2214,3 +2214,35 @@ with recursive qn as select * from qn; drop table t1; + +--echo # +--echo # MDEV-16086: tmp table for CTE is created as ARIA tables +--echo # + +CREATE TABLE t1 ( + Id int(11) not null AUTO_INCREMENT, + Parent varchar(15) not null, + Child varchar(15) not null, + PRIMARY KEY (Id) +) ENGINE = MyISAM; + +INSERT INTO t1 (Parent, Child) VALUES + ('123', '456'),('456', '789'),('321', '654'),('654', '987'); + +WITH RECURSIVE cte AS + ( SELECT b.Parent, + b.Child, + CAST(CONCAT(b.Child,',') AS CHAR(513)) Path + FROM t1 b + LEFT OUTER JOIN t1 bc ON b.Child = bc.Parent + WHERE bc.Id IS NULL + UNION ALL SELECT c.Parent, + c.Child, + CONCAT(p.Path,c.Child,',') Path + FROM t1 c + INNER JOIN cte p ON c.Child = p.Parent) +SELECT * +FROM cte +ORDER BY Path; + +DROP TABLE t1; -- cgit v1.2.1