Merge 10.4 into 10.5

1 files changed, 40 insertions, 2 deletions

diff --git a/mysql-test/main/cte_nonrecursive.result b/mysql-test/main/cte_nonrecursive.result
index e773caa7614..54283f1ccf1 100644
--- a/mysql-test/main/cte_nonrecursive.result
+++ b/mysql-test/main/cte_nonrecursive.result
@@ -618,7 +618,7 @@ with t(c) as (select a from t1 where b >= 'c')
 select * from t r1, t r2 where r1.c=r2.c and r2.c=4;
 show create view v4;
 View	Create View	character_set_client	collation_connection
-v4	CREATE ALGORITHM=UNDEFINED DEFINER=`root`@`localhost` SQL SECURITY DEFINER VIEW `v4` AS with t(`c`) as (select `test`.`t1`.`a` AS `c` from `test`.`t1` where `test`.`t1`.`b` >= 'c')select `r1`.`c` AS `c`,`r2`.`c` AS `d` from (`t` `r1` join (select `test`.`t1`.`a` AS `c` from `test`.`t1` where `test`.`t1`.`b` >= 'c') `r2`) where `r1`.`c` = `r2`.`c` and `r2`.`c` = 4	latin1	latin1_swedish_ci
+v4	CREATE ALGORITHM=UNDEFINED DEFINER=`root`@`localhost` SQL SECURITY DEFINER VIEW `v4` AS with t(`c`) as (select `test`.`t1`.`a` AS `c` from `test`.`t1` where `test`.`t1`.`b` >= 'c')select `r1`.`c` AS `c`,`r2`.`c` AS `d` from (`t` `r1` join `t` `r2`) where `r1`.`c` = `r2`.`c` and `r2`.`c` = 4	latin1	latin1_swedish_ci
 select * from v4;
 c	d
 4	4
@@ -1126,7 +1126,7 @@ NULL	UNION RESULT	<union4,5>	ALL	NULL	NULL	NULL	NULL	NULL	NULL
 NULL	UNION RESULT	<union11,12>	ALL	NULL	NULL	NULL	NULL	NULL	NULL	
 NULL	UNION RESULT	<union1,6>	ALL	NULL	NULL	NULL	NULL	NULL	NULL	
 Warnings:
-Note	1003	with cte_e as (with cte_o as (with cte_i as (select `test`.`t1`.`a` AS `a` from `test`.`t1` where `test`.`t1`.`a` < 7)select `test`.`t1`.`a` AS `a` from `test`.`t1` where `test`.`t1`.`a` > 1)select `test`.`t1`.`a` AS `a` from `test`.`t1` where `test`.`t1`.`a` < 3 and `test`.`t1`.`a` > 1 and `test`.`t1`.`a` < 7 and `test`.`t1`.`a` > 1 union select `test`.`t1`.`a` AS `a` from `test`.`t1` where `test`.`t1`.`a` > 4 and `test`.`t1`.`a` > 1 and `test`.`t1`.`a` < 7 and `test`.`t1`.`a` > 1)select `cte_e1`.`a` AS `a` from `cte_e` `cte_e1` where `cte_e1`.`a` > 1 union select `cte_e2`.`a` AS `a` from (with cte_o as (with cte_i as (select `test`.`t1`.`a` AS `a` from `test`.`t1` where `test`.`t1`.`a` < 7)select `test`.`t1`.`a` AS `a` from `test`.`t1` where `test`.`t1`.`a` > 1)select `test`.`t1`.`a` AS `a` from `test`.`t1` where `test`.`t1`.`a` < 3 and `test`.`t1`.`a` > 1 and `test`.`t1`.`a` < 7 union select `test`.`t1`.`a` AS `a` from `test`.`t1` where `test`.`t1`.`a` > 4 and `test`.`t1`.`a` > 1 and `test`.`t1`.`a` < 7) `cte_e2`
+Note	1003	with cte_e as (with cte_o as (with cte_i as (select `test`.`t1`.`a` AS `a` from `test`.`t1` where `test`.`t1`.`a` < 7)select `test`.`t1`.`a` AS `a` from `test`.`t1` where `test`.`t1`.`a` > 1)select `test`.`t1`.`a` AS `a` from `test`.`t1` where `test`.`t1`.`a` < 3 and `test`.`t1`.`a` > 1 and `test`.`t1`.`a` < 7 and `test`.`t1`.`a` > 1 union select `test`.`t1`.`a` AS `a` from `test`.`t1` where `test`.`t1`.`a` > 4 and `test`.`t1`.`a` > 1 and `test`.`t1`.`a` < 7 and `test`.`t1`.`a` > 1)select `cte_e1`.`a` AS `a` from `cte_e` `cte_e1` where `cte_e1`.`a` > 1 union select `cte_e2`.`a` AS `a` from `cte_e` `cte_e2`
 drop table t1;
 #
 # MDEV-13753: embedded CTE in a VIEW created in prepared statement
@@ -1725,6 +1725,44 @@ drop table db1.t1;
 drop database db1;
 create database test;
 use test;
+#
+# MDEV-24597: CTE with union used multiple times in query
+#
+with cte(a) as
+(select 1 as d union select 2 as d)
+select a from cte as r1
+union
+select a from cte as r2;
+a
+1
+2
+create table t1 (a int, b int) engine=myisam;
+insert into t1 values
+(3,30), (7,70), (1,10), (7,71), (2,20), (7,72), (3,33), (4,44),
+(5,50), (4,40), (3,33), (4,42), (4,43), (5,51);
+with cte(c) as
+(select a from t1 where b < 30 union select a from t1 where b > 40)
+select * from cte as r1, cte as r2 where r1.c = r2.c;
+c	c
+1	1
+2	2
+7	7
+4	4
+5	5
+with cte(a,c) as
+(
+select a, count(*) from t1 group by a having count(*) = 1
+union
+select a, count(*) from t1 group by a having count(*) = 3
+)
+select a, c from cte as r1 where a < 3
+union
+select a, c from cte as r2 where a > 4;
+a	c
+1	1
+2	1
+7	3
+drop table t1;
 # End of 10.2 tests
 #
 # MDEV-21673: several references to CTE that uses