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

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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
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9
mysql-test/t/heap_btree.test
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@@ -213,4 +213,13 @@ CREATE TABLE t1 (
INSERT INTO t1 VALUES('1'), ('2');
DROP TABLE t1;
#
# BUG#30590 - delete from memory table with composite btree primary key
#
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;
DROP TABLE t1;
--echo End of 4.1 tests