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Bug#41084 full-text index added to custom UCA collation not working

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Problem:
Custom UCA collations didn't set the MY_CS_STRNXFRM flag,
which resulted in "prefix_search" method instead of
the required "seq_search".

Problem2: (not metioned in the bug report)
Custom UCA collations didn't also set the MY_CS_UNICODE flag,
so an attempt to compare a column with a custom UCA collation
to another column with a non-Unicode character set led to
the "illegal mix of collation" error.

Fix:
the two missing flags was added into collation initialization.

  Upgrade:

  - All fulltext indexes with custom UCA collations should be rebuilt.

  - Non-fulltext custom UCA indexes should likely be rebuild as well.
This commit is contained in:
Alexander Barkov
2009-02-02 17:25:42 +04:00
parent da44c30130
commit 9a64fc52af
3 changed files with 37 additions and 2 deletions
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19
mysql-test/r/ctype_ldml.result
View File

@ -21,6 +21,25 @@ select * from t1 where c1='b';
c1
a
drop table t1;
CREATE TABLE t1 (
col1 varchar(100) character set utf8 collate utf8_test_ci
);
INSERT INTO t1 (col1) VALUES ('abcd'),('efgh'),('ijkl');
ALTER TABLE t1 ADD FULLTEXT INDEX (col1);
SELECT * FROM t1 where match (col1) against ('abcd');
col1
abcd
SELECT * FROM t1 where match (col1) against ('abcd' IN BOOLEAN MODE);
col1
abcd
ALTER TABLE t1 ADD (col2 varchar(100) character set latin1);
UPDATE t1 SET col2=col1;
SELECT * FROM t1 WHERE col1=col2 ORDER BY col1;
col1 col2
abcd abcd
efgh efgh
ijkl ijkl
DROP TABLE t1;
show collation like 'ucs2_vn_ci';
Collation Charset Id Default Compiled Sortlen
ucs2_vn_ci ucs2 242 8

16
mysql-test/t/ctype_ldml.test
View File

@ -21,6 +21,22 @@ insert into t1 values ('a');
select * from t1 where c1='b';
drop table t1;
#
# Bug#41084 full-text index added to custom UCA collation not working
#
CREATE TABLE t1 (
col1 varchar(100) character set utf8 collate utf8_test_ci
);
INSERT INTO t1 (col1) VALUES ('abcd'),('efgh'),('ijkl');
ALTER TABLE t1 ADD FULLTEXT INDEX (col1);
SELECT * FROM t1 where match (col1) against ('abcd');
SELECT * FROM t1 where match (col1) against ('abcd' IN BOOLEAN MODE);
ALTER TABLE t1 ADD (col2 varchar(100) character set latin1);
UPDATE t1 SET col2=col1;
SELECT * FROM t1 WHERE col1=col2 ORDER BY col1;
DROP TABLE t1;
#
# Vietnamese experimental collation
#