1 files changed, 58 insertions, 0 deletions
diff --git a/mysql-test/main/cte_nonrecursive_not_embedded.test b/mysql-test/main/cte_nonrecursive_not_embedded.test
new file mode 100644
index 00000000..e80baeaf
--- /dev/null
+++ b/mysql-test/main/cte_nonrecursive_not_embedded.test
@@ -0,0 +1,58 @@
+-- source include/not_embedded.inc
+
+--echo #
+--echo # MDEV-20751: query using many CTEs with grant_tables enabled
+--echo #
+
+--connection default
+
+CREATE DATABASE db;
+USE db;
+
+CREATE TABLE t1 (a int) ENGINE=MYISAM;
+INSERT INTO t1 VALUES (3), (7), (1);
+CREATE TABLE t2 (a int) ENGINE=MYISAM;
+INSERT INTO t2 VALUES (2), (8), (4);
+
+
+CREATE USER 'u1'@'localhost';
+GRANT USAGE ON db.* TO 'u1'@'localhost';
+GRANT SELECT ON db.t1 TO 'u1'@'localhost';
+FLUSH PRIVILEGES;
+
+--connect (u1,'localhost',u1,,)
+--connection u1
+USE db;
+
+WITH
+cte1 AS
+(SELECT a FROM t1),
+cte2 AS
+(SELECT cte1.a FROM t1,cte1 WHERE cte1.a = t1.a),
+cte3 AS
+(SELECT cte2.a FROM t1,cte1,cte2 WHERE cte1.a = t1.a AND t1.a = cte2.a),
+cte4 AS
+(SELECT cte2.a FROM t1,cte2 WHERE cte2.a = t1.a)
+SELECT * FROM cte4 as r;
+
+--error ER_TABLEACCESS_DENIED_ERROR
+WITH
+cte1 AS
+(SELECT a FROM t2),
+cte2 AS
+(SELECT cte1.a FROM t2,cte1 WHERE cte1.a = t2.a),
+cte3 AS
+(SELECT cte2.a FROM t2,cte1,cte2 WHERE cte1.a = t2.a AND t2.a = cte2.a),
+cte4 AS
+(SELECT cte2.a FROM t2,cte2 WHERE cte2.a = t2.a)
+SELECT * FROM cte4 as r;
+
+--disconnect u1
+--connection default
+
+DROP USER 'u1'@'localhost';
+DROP DATABASE db;
+
+USE test;
+
+--echo # End of 10.2 tests