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BUG#31159 - fulltext search on ucs2 column crashes server

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ucs2 doesn't provide required by fulltext ctype array. Crash
happens because fulltext attempts to use unitialized ctype
array.

Fixed by converting ucs2 fields to compatible utf8 analogue.


include/my_sys.h:
  Added a function to find compatible character set with ctype array
  available. Currently used by fulltext search to find compatible
  substitute for ucs2 collations.
mysql-test/r/ctype_ucs.result:
  A test case for BUG#31159.
mysql-test/t/ctype_ucs.test:
  A test case for BUG#31159.
mysys/charset.c:
  Added a function to find compatible character set with ctype array
  available. Currently used by fulltext search to find compatible
  substitute for ucs2 collations.
sql/item_func.cc:
  Convert ucs2 fields to utf8. Fulltext requires ctype array, but
  ucs2 doesn't provide it.
This commit is contained in:
unknown
2007-10-24 16:09:30 +05:00
parent d244374f2b
commit 660d66263b
5 changed files with 88 additions and 1 deletions
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6
mysql-test/r/ctype_ucs.result
View File

@ -803,4 +803,10 @@ quote(name)
????????
????????????????
drop table bug20536;
CREATE TABLE t1(a TEXT CHARSET ucs2 COLLATE ucs2_unicode_ci);
INSERT INTO t1 VALUES('abcd');
SELECT * FROM t1 WHERE MATCH(a) AGAINST ('+abcd' IN BOOLEAN MODE);
a
abcd
DROP TABLE t1;
End of 4.1 tests

8
mysql-test/t/ctype_ucs.test
View File

@ -535,4 +535,12 @@ select quote(name) from bug20536;
drop table bug20536;
#
# BUG#31159 - fulltext search on ucs2 column crashes server
#
CREATE TABLE t1(a TEXT CHARSET ucs2 COLLATE ucs2_unicode_ci);
INSERT INTO t1 VALUES('abcd');
SELECT * FROM t1 WHERE MATCH(a) AGAINST ('+abcd' IN BOOLEAN MODE);
DROP TABLE t1;
--echo End of 4.1 tests