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Merge fix for bug50351 to mysql-5.1-bugteam.

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This commit is contained in:
Sergey Vojtovich 2010-02-09 15:47:07 +04:00
commit 62c2ad09eb
3 changed files with 52 additions and 1 deletions
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20
mysql-test/r/fulltext.result
View File

@ -603,6 +603,26 @@ WHERE t3.a=t1.a AND MATCH(b2) AGAINST('scargill' IN BOOLEAN MODE)
count(*) count(*)
0 0
DROP TABLE t1,t2,t3; DROP TABLE t1,t2,t3;
CREATE TABLE t1 (a VARCHAR(4), FULLTEXT(a));
INSERT INTO t1 VALUES
('cwrd'),('cwrd'),('cwrd'),('cwrd'),('cwrd'),('cwrd'),('cwrd'),('cwrd'),
('cwrd'),('cwrd'),('cwrd'),('cwrd'),('cwrd'),('cwrd'),('cwrd'),('cwrd'),
('cwrd'),('cwrd'),('cwrd'),('cwrd'),('cwrd'),('cwrd'),('cwrd'),('cwrd'),
('cwrd'),('cwrd'),('cwrd'),('cwrd'),('cwrd'),('cwrd'),('cwrd'),('cwrd'),
('cwrd'),('cwrd'),('cwrd'),('cwrd'),('cwrd'),('cwrd'),('cwrd'),('cwrd'),
('cwrd'),('cwrd'),('cwrd'),('cwrd'),('cwrd'),('cwrd'),('cwrd'),('cwrd'),
('cwrd'),('cwrd'),('cwrd'),('cwrd'),('cwrd'),('cwrd'),('cwrd'),('cwrd'),
('cwrd'),('cwrd'),('cwrd'),('cwrd'),('cwrd'),('cwrd'),('cwrd'),('cwrd'),
('cwrd'),('cwrd'),('cwrd'),('cwrd'),('cwrd'),('cwrd'),('cwrd'),('cwrd'),
('cwrd'),('cwrd'),('cwrd'),('cwrd'),('cwrd'),('cwrd'),('cwrd'),('cwrd'),
('cwrd'),('cwrd'),('cwrd'),('cwrd'),('cwrd'),('cwrd'),('cwrd'),('cwrd'),
('cwrd'),('cwrd'),('cwrd'),('cwrd'),('cwrd'),('cwrd'),('cwrd'),('cwrd'),
('cwrd'),('cwrd'),('cwrd'),('cwrd'),('cwrd'),('cwrd'),('awrd'),('cwrd'),
('awrd');
SELECT COUNT(*) FROM t1 WHERE MATCH(a) AGAINST("+awrd bwrd* +cwrd*" IN BOOLEAN MODE);
COUNT(*)
0
DROP TABLE t1;
# #
# Bug #49445: Assertion failed: 0, file .\item_row.cc, line 55 with # Bug #49445: Assertion failed: 0, file .\item_row.cc, line 55 with
# fulltext search and row op # fulltext search and row op

21
mysql-test/t/fulltext.test
View File

@ -544,6 +544,27 @@ SELECT count(*) FROM t1 WHERE
DROP TABLE t1,t2,t3; DROP TABLE t1,t2,t3;
#
# BUG#50351 - ft_min_word_len=2 Causes query to hang
#
CREATE TABLE t1 (a VARCHAR(4), FULLTEXT(a));
INSERT INTO t1 VALUES
('cwrd'),('cwrd'),('cwrd'),('cwrd'),('cwrd'),('cwrd'),('cwrd'),('cwrd'),
('cwrd'),('cwrd'),('cwrd'),('cwrd'),('cwrd'),('cwrd'),('cwrd'),('cwrd'),
('cwrd'),('cwrd'),('cwrd'),('cwrd'),('cwrd'),('cwrd'),('cwrd'),('cwrd'),
('cwrd'),('cwrd'),('cwrd'),('cwrd'),('cwrd'),('cwrd'),('cwrd'),('cwrd'),
('cwrd'),('cwrd'),('cwrd'),('cwrd'),('cwrd'),('cwrd'),('cwrd'),('cwrd'),
('cwrd'),('cwrd'),('cwrd'),('cwrd'),('cwrd'),('cwrd'),('cwrd'),('cwrd'),
('cwrd'),('cwrd'),('cwrd'),('cwrd'),('cwrd'),('cwrd'),('cwrd'),('cwrd'),
('cwrd'),('cwrd'),('cwrd'),('cwrd'),('cwrd'),('cwrd'),('cwrd'),('cwrd'),
('cwrd'),('cwrd'),('cwrd'),('cwrd'),('cwrd'),('cwrd'),('cwrd'),('cwrd'),
('cwrd'),('cwrd'),('cwrd'),('cwrd'),('cwrd'),('cwrd'),('cwrd'),('cwrd'),
('cwrd'),('cwrd'),('cwrd'),('cwrd'),('cwrd'),('cwrd'),('cwrd'),('cwrd'),
('cwrd'),('cwrd'),('cwrd'),('cwrd'),('cwrd'),('cwrd'),('cwrd'),('cwrd'),
('cwrd'),('cwrd'),('cwrd'),('cwrd'),('cwrd'),('cwrd'),('awrd'),('cwrd'),
('awrd');
SELECT COUNT(*) FROM t1 WHERE MATCH(a) AGAINST("+awrd bwrd* +cwrd*" IN BOOLEAN MODE);
DROP TABLE t1;
--echo # --echo #
--echo # Bug #49445: Assertion failed: 0, file .\item_row.cc, line 55 with --echo # Bug #49445: Assertion failed: 0, file .\item_row.cc, line 55 with

12
storage/myisam/ft_boolean_search.c
View File

@ -437,8 +437,18 @@ static int _ft2_search(FTB *ftb, FTB_WORD *ftbw, my_bool init_search)
return 0; return 0;
} }
/* going up to the first-level tree to continue search there */ /*
Going up to the first-level tree to continue search there.
Only done when performing prefix search.
Key buffer data pointer as well as docid[0] may be smaller
than values we got while searching first-level tree. Thus
they must be restored to original values to avoid dead-loop,
when subsequent search for a bigger value eventually ends up
in this same second-level tree.
*/
_mi_dpointer(info, (uchar*) (lastkey_buf+HA_FT_WLEN), ftbw->key_root); _mi_dpointer(info, (uchar*) (lastkey_buf+HA_FT_WLEN), ftbw->key_root);
ftbw->docid[0]= ftbw->key_root;
ftbw->key_root=info->s->state.key_root[ftb->keynr]; ftbw->key_root=info->s->state.key_root[ftb->keynr];
ftbw->keyinfo=info->s->keyinfo+ftb->keynr; ftbw->keyinfo=info->s->keyinfo+ftb->keynr;
ftbw->off=0; ftbw->off=0;