diff options
Diffstat (limited to 'mysql-test/t/cte_recursive.test')
-rw-r--r-- | mysql-test/t/cte_recursive.test | 70 |
1 files changed, 69 insertions, 1 deletions
diff --git a/mysql-test/t/cte_recursive.test b/mysql-test/t/cte_recursive.test index 1c0280f065e..d1904586ffe 100644 --- a/mysql-test/t/cte_recursive.test +++ b/mysql-test/t/cte_recursive.test @@ -2390,6 +2390,30 @@ select * from cte1, cte2 where cte1.c1 = 3; eval $q3; +let $q4= +with recursive +rcte(a) as +(select 1 union select cast(a+1 as unsigned) from rcte where a < 10), +cte1 as +(select count(*) as c1 from rcte,t1 where a between 3 and 5 and id=a-3), +cte2 as +(select count(*) as c2 from rcte,t1 where a between 7 and 8 and id=a-7) +select * from cte2, cte1; + +eval $q4; +eval explain extended $q4; +eval prepare stmt from "$q4"; +execute stmt; +execute stmt; + +drop procedure p; +drop table t2; + +create table t2 (c1 int, c2 int); +eval create procedure p() insert into t2 $q4; +call p(); +select * from t2; + drop procedure p; drop table t1,t2; @@ -2574,4 +2598,48 @@ eval analyze format=json $q; drop function f1; drop table t1,t2; ---echo End of 10.2 tests +--echo # +--echo # MDEV-22748: two materialized CTEs using the same recursive CTE +--echo # (see also test case for MDEV-17024) +--echo # + +CREATE TABLE t1 (YEAR int(4), d1 date , d2 date) ; +INSERT INTO t1 VALUES (2018,'2018-01-01','2018-09-20'); +CREATE TABLE t2 (id int, tm date); +INSERT INTO t2 VALUES (1,'2018-08-30'),(2,'2018-08-30'),(3,'2018-08-30'); +CREATE TABLE t3 (id int, tm date); +INSERT INTO t3 VALUES (1,'2018-08-30'),(2,'2018-08-30'); + +let $q= +WITH RECURSIVE +cte AS + (SELECT YEAR(t1.d1) AS YEAR, t1.d1 AS st, t1.d1 + INTERVAL 1 MONTH AS fn + FROM t1 + UNION ALL + SELECT YEAR(cte.st + INTERVAL 1 MONTH), + cte.st + INTERVAL 1 MONTH, t1.d2 + INTERVAL 1 DAY + FROM cte JOIN t1 + WHERE cte.st + INTERVAL 1 MONTH < t1.d2 ), +cte2 AS (SELECT YEAR, COUNT(*) + FROM cte JOIN t2 ON t2.tm BETWEEN cte.st AND cte.fn), +cte3 AS (SELECT YEAR, COUNT(*) + FROM cte JOIN t3 ON t3.tm BETWEEN cte.st AND cte.fn) +SELECT t1.* FROM t1 JOIN cte2 USING (YEAR) JOIN cte3 USING (YEAR); + +eval $q; +eval EXPLAIN EXTENDED $q; +eval PREPARE stmt FROM "$q"; +EXECUTE stmt; +EXECUTE stmt; + +CREATE TABLE t4 (YEAR int(4), d1 date , d2 date); +eval CREATE PROCEDURE p() INSERT INTO t4 $q; +CALL p(); +SELECT * FROM t4; + +DROP PROCEDURE p; +DROP TABLE t1,t2,t3,t4; + +--echo # +--echo # End of 10.2 tests +--echo # |