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Added a test case for bug #18359.

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This was another manifestation of the problems fixed in the
patch for bug 16674.
Wrong calculation of length of the search prefix in the pattern
string led here to a wrong result set for a query in 4.1. 
The bug could be demonstrated for any multi-byte character set.
This commit is contained in:
igor@rurik.mysql.com 2006-06-22 20:39:46 -07:00
parent 8940231491
commit faa48bf1a0
2 changed files with 87 additions and 0 deletions
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56
mysql-test/r/ctype_utf8.result
View file

@ -1237,3 +1237,59 @@ a
Käli Käli 2-4
Käli Käli 2-4
DROP TABLE t1;
SET NAMES latin2;
CREATE TABLE t1 (
id int(11) NOT NULL default '0',
tid int(11) NOT NULL default '0',
val text NOT NULL,
INDEX idx(tid, val(10))
) ENGINE=MyISAM DEFAULT CHARSET=utf8;
INSERT INTO t1 VALUES
(40988,72,'VOLNÝ ADSL'),(41009,72,'VOLNÝ ADSL'),
(41032,72,'VOLNÝ ADSL'),(41038,72,'VOLNÝ ADSL'),
(41063,72,'VOLNÝ ADSL'),(41537,72,'VOLNÝ ADSL Office'),
(42141,72,'VOLNÝ ADSL'),(42565,72,'VOLNÝ ADSL Combi'),
(42749,72,'VOLNÝ ADSL'),(44205,72,'VOLNÝ ADSL');
SELECT * FROM t1 WHERE tid=72 and val LIKE 'VOLNY ADSL';
id tid val
40988 72 VOLNÝ ADSL
41009 72 VOLNÝ ADSL
41032 72 VOLNÝ ADSL
41038 72 VOLNÝ ADSL
41063 72 VOLNÝ ADSL
42141 72 VOLNÝ ADSL
42749 72 VOLNÝ ADSL
44205 72 VOLNÝ ADSL
SELECT * FROM t1 WHERE tid=72 and val LIKE 'VOLNÝ ADSL';
id tid val
40988 72 VOLNÝ ADSL
41009 72 VOLNÝ ADSL
41032 72 VOLNÝ ADSL
41038 72 VOLNÝ ADSL
41063 72 VOLNÝ ADSL
42141 72 VOLNÝ ADSL
42749 72 VOLNÝ ADSL
44205 72 VOLNÝ ADSL
SELECT * FROM t1 WHERE tid=72 and val LIKE '%VOLNÝ ADSL';
id tid val
40988 72 VOLNÝ ADSL
41009 72 VOLNÝ ADSL
41032 72 VOLNÝ ADSL
41038 72 VOLNÝ ADSL
41063 72 VOLNÝ ADSL
42141 72 VOLNÝ ADSL
42749 72 VOLNÝ ADSL
44205 72 VOLNÝ ADSL
ALTER TABLE t1 DROP KEY idx;
ALTER TABLE t1 ADD KEY idx (tid,val(11));
SELECT * FROM t1 WHERE tid=72 and val LIKE 'VOLNÝ ADSL';
id tid val
40988 72 VOLNÝ ADSL
41009 72 VOLNÝ ADSL
41032 72 VOLNÝ ADSL
41038 72 VOLNÝ ADSL
41063 72 VOLNÝ ADSL
42141 72 VOLNÝ ADSL
42749 72 VOLNÝ ADSL
44205 72 VOLNÝ ADSL
DROP TABLE t1;

31
mysql-test/t/ctype_utf8.test
View file

@ -1009,4 +1009,35 @@ ALTER TABLE t1 ADD KEY (a(10));
SELECT * FROM t1 WHERE a LIKE 'Käli Käli 2%';
DROP TABLE t1;
#
# Bug#18359: LIKE predicate for a 'utf8' text column with a partial index
# (see bug #16674 as well)
#
SET NAMES latin2;
CREATE TABLE t1 (
id int(11) NOT NULL default '0',
tid int(11) NOT NULL default '0',
val text NOT NULL,
INDEX idx(tid, val(10))
) ENGINE=MyISAM DEFAULT CHARSET=utf8;
INSERT INTO t1 VALUES
(40988,72,'VOLNÝ ADSL'),(41009,72,'VOLNÝ ADSL'),
(41032,72,'VOLNÝ ADSL'),(41038,72,'VOLNÝ ADSL'),
(41063,72,'VOLNÝ ADSL'),(41537,72,'VOLNÝ ADSL Office'),
(42141,72,'VOLNÝ ADSL'),(42565,72,'VOLNÝ ADSL Combi'),
(42749,72,'VOLNÝ ADSL'),(44205,72,'VOLNÝ ADSL');
SELECT * FROM t1 WHERE tid=72 and val LIKE 'VOLNY ADSL';
SELECT * FROM t1 WHERE tid=72 and val LIKE 'VOLNÝ ADSL';
SELECT * FROM t1 WHERE tid=72 and val LIKE '%VOLNÝ ADSL';
ALTER TABLE t1 DROP KEY idx;
ALTER TABLE t1 ADD KEY idx (tid,val(11));
SELECT * FROM t1 WHERE tid=72 and val LIKE 'VOLNÝ ADSL';
DROP TABLE t1;
# End of 4.1 tests