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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
Käli Käli 2-4 Käli Käli 2-4
DROP TABLE t1; 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,'VOLN<4C> ADSL'),(41009,72,'VOLN<4C> ADSL'),
(41032,72,'VOLN<4C> ADSL'),(41038,72,'VOLN<4C> ADSL'),
(41063,72,'VOLN<4C> ADSL'),(41537,72,'VOLN<4C> ADSL Office'),
(42141,72,'VOLN<4C> ADSL'),(42565,72,'VOLN<4C> ADSL Combi'),
(42749,72,'VOLN<4C> ADSL'),(44205,72,'VOLN<4C> ADSL');
SELECT * FROM t1 WHERE tid=72 and val LIKE 'VOLNY ADSL';
id tid val
40988 72 VOLN<4C> ADSL
41009 72 VOLN<4C> ADSL
41032 72 VOLN<4C> ADSL
41038 72 VOLN<4C> ADSL
41063 72 VOLN<4C> ADSL
42141 72 VOLN<4C> ADSL
42749 72 VOLN<4C> ADSL
44205 72 VOLN<4C> ADSL
SELECT * FROM t1 WHERE tid=72 and val LIKE 'VOLN<4C> ADSL';
id tid val
40988 72 VOLN<4C> ADSL
41009 72 VOLN<4C> ADSL
41032 72 VOLN<4C> ADSL
41038 72 VOLN<4C> ADSL
41063 72 VOLN<4C> ADSL
42141 72 VOLN<4C> ADSL
42749 72 VOLN<4C> ADSL
44205 72 VOLN<4C> ADSL
SELECT * FROM t1 WHERE tid=72 and val LIKE '%VOLN<4C> ADSL';
id tid val
40988 72 VOLN<4C> ADSL
41009 72 VOLN<4C> ADSL
41032 72 VOLN<4C> ADSL
41038 72 VOLN<4C> ADSL
41063 72 VOLN<4C> ADSL
42141 72 VOLN<4C> ADSL
42749 72 VOLN<4C> ADSL
44205 72 VOLN<4C> 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 'VOLN<4C> ADSL';
id tid val
40988 72 VOLN<4C> ADSL
41009 72 VOLN<4C> ADSL
41032 72 VOLN<4C> ADSL
41038 72 VOLN<4C> ADSL
41063 72 VOLN<4C> ADSL
42141 72 VOLN<4C> ADSL
42749 72 VOLN<4C> ADSL
44205 72 VOLN<4C> 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%'; SELECT * FROM t1 WHERE a LIKE 'Käli Käli 2%';
DROP TABLE t1; 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,'VOLN<4C> ADSL'),(41009,72,'VOLN<4C> ADSL'),
(41032,72,'VOLN<4C> ADSL'),(41038,72,'VOLN<4C> ADSL'),
(41063,72,'VOLN<4C> ADSL'),(41537,72,'VOLN<4C> ADSL Office'),
(42141,72,'VOLN<4C> ADSL'),(42565,72,'VOLN<4C> ADSL Combi'),
(42749,72,'VOLN<4C> ADSL'),(44205,72,'VOLN<4C> ADSL');
SELECT * FROM t1 WHERE tid=72 and val LIKE 'VOLNY ADSL';
SELECT * FROM t1 WHERE tid=72 and val LIKE 'VOLN<4C> ADSL';
SELECT * FROM t1 WHERE tid=72 and val LIKE '%VOLN<4C> 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 'VOLN<4C> ADSL';
DROP TABLE t1;
# End of 4.1 tests # End of 4.1 tests