database/mariadb
1
0
Fork 0
mirror of https://github.com/MariaDB/server.git synced 2025-07-30 16:24:05 +03:00
Code Activity

BUG#30590 - delete from memory table with composite btree primary key

Browse Source 
DELETE query against memory table with btree index may remove
not all matching rows. This happens only when DELETE uses
index read method to find matching rows. E.g. for queries
like DELETE FROM t1 WHERE a=1.

Fixed by reverting fix for BUG9719 and applying proper solution.
This commit is contained in:
svoj@mysql.com/june.mysql.com
2007-09-13 15:39:16 +05:00
parent 45647d3bd9
commit 84a9e656e0
5 changed files with 56 additions and 3 deletions
Download Patch File Download Diff File Expand all files Collapse all files

7
mysql-test/r/heap_btree.result
View File

@ -307,4 +307,11 @@ UNIQUE USING BTREE(c1)
) ENGINE= MEMORY DEFAULT CHARSET= utf8;
INSERT INTO t1 VALUES('1'), ('2');
DROP TABLE t1;
CREATE TABLE t1 (a INT, KEY USING BTREE(a)) ENGINE=MEMORY;
INSERT INTO t1 VALUES(1),(2),(2);
DELETE FROM t1 WHERE a=2;
SELECT * FROM t1;
a
1
DROP TABLE t1;
End of 4.1 tests