database/mariadb
1
0
Fork 0
mirror of https://github.com/MariaDB/server.git synced 2025-08-01 03:47:19 +03:00
Code Activity

Fixed bug #18279: crash in the cases when on conditions are moved

Browse Source 
out of a nested join to the on conditions for the nest.
The bug happened due to:
1. The function simplify_joins could change on expressions for nested joins.
   Yet modified on expressions were not saved in prep_on_expr.
2. On expressions were not restored for nested joins in 
   reinit_stmt_before_use.


mysql-test/r/join_nested.result:
  Added a test case for bug #18279.
mysql-test/t/join_nested.test:
  Added a test case for bug #18279.
sql/sql_prepare.cc:
  Fixed bug #18279.
  On expressions were not restored for nested joins in 
  reinit_stmt_before_use.
sql/sql_select.cc:
  Fixed bug #18279.
  The function simplify_joins could change on expressions for nested joins.
  Yet modified on expressions were not saved in prep_on_expr.
This commit is contained in:
unknown
2006-03-29 16:45:29 -08:00
parent c5ab0159e1
commit 9a02fede24
4 changed files with 123 additions and 5 deletions
Download Patch File Download Diff File Expand all files Collapse all files

58
mysql-test/r/join_nested.result
View File

@ -1504,3 +1504,61 @@ id type cid id pid pid type
1 A NULL NULL NULL NULL NULL
DROP VIEW v1;
DROP TABLE t1,t2,t3;
CREATE TABLE t1 (id1 int PRIMARY KEY, id2 int);
CREATE TABLE t2 (id1 int PRIMARY KEY, id2 int);
CREATE TABLE t3 (id1 int PRIMARY KEY, id2 int);
CREATE TABLE t4 (id1 int PRIMARY KEY, id2 int);
CREATE TABLE t5 (id1 int PRIMARY KEY, id2 int);
SELECT t1.id1 AS id, t5.id1 AS ngroupbynsa
FROM t1 INNER JOIN t2 ON t2.id2 = t1.id1
LEFT OUTER JOIN
(t3 INNER JOIN t4 ON t4.id1 = t3.id2 INNER JOIN t5 ON t4.id2 = t5.id1)
ON t3.id2 IS NOT NULL
WHERE t1.id1=2;
id ngroupbynsa
PREPARE stmt FROM
"SELECT t1.id1 AS id, t5.id1 AS ngroupbynsa
FROM t1 INNER JOIN t2 ON t2.id2 = t1.id1
LEFT OUTER JOIN
(t3 INNER JOIN t4 ON t4.id1 = t3.id2 INNER JOIN t5 ON t4.id2 = t5.id1)
ON t3.id2 IS NOT NULL
WHERE t1.id1=2";
EXECUTE stmt;
id ngroupbynsa
EXECUTE stmt;
id ngroupbynsa
EXECUTE stmt;
id ngroupbynsa
EXECUTE stmt;
id ngroupbynsa
INSERT INTO t1 VALUES (1,1), (2,1), (3,2);
INSERT INTO t2 VALUES (2,1), (3,2), (4,3);
INSERT INTO t3 VALUES (1,1), (3,2), (2,NULL);
INSERT INTO t4 VALUES (1,1), (2,1), (3,3);
INSERT INTO t5 VALUES (1,1), (2,2), (3,3), (4,3);
EXECUTE stmt;
id ngroupbynsa
2 1
2 1
EXECUTE stmt;
id ngroupbynsa
2 1
2 1
EXECUTE stmt;
id ngroupbynsa
2 1
2 1
EXECUTE stmt;
id ngroupbynsa
2 1
2 1
SELECT t1.id1 AS id, t5.id1 AS ngroupbynsa
FROM t1 INNER JOIN t2 ON t2.id2 = t1.id1
LEFT OUTER JOIN
(t3 INNER JOIN t4 ON t4.id1 = t3.id2 INNER JOIN t5 ON t4.id2 = t5.id1)
ON t3.id2 IS NOT NULL
WHERE t1.id1=2;
id ngroupbynsa
2 1
2 1
DROP TABLE t1,t2,t3,t4,t5;