ftb bug fixed

Docs/manual.texi

@@ -48932,6 +48932,9 @@ Our TODO section contains what we plan to have in 4.0. @xref{TODO MySQL 4.0}.
 
 @itemize @bullet
 @item
+Fixed bug in boolean fulltext search, that caused MySQL to ignore queries of
+@code{ft_min_word_len} characters.
+@item
 Boolean fulltext search now supports "phrase searches".
 @item
 New configure option @code{--without-query-cache}. 

myisam/ft_boolean_search.c

@@ -256,7 +256,7 @@ FT_INFO * ft_init_boolean_search(MI_INFO *info, uint keynr, byte *query,
   /* hack: instead of init_queue, we'll use reinit queue to be able
    * to alloc queue with alloc_root()
    */
-  res=ftb->queue.max_elements=query_len/(ft_min_word_len+1);
+  res=ftb->queue.max_elements=1+query_len/(ft_min_word_len+1);
   ftb->queue.root=(byte **)alloc_root(&ftb->mem_root, (res+1)*sizeof(void*));
   reinit_queue(& ftb->queue, res, 0, 0,
                          (int (*)(void*,byte*,byte*))FTB_WORD_cmp, ftb);

mysql-test/r/fulltext.result

@@ -156,6 +156,9 @@ KEY ind5 (title),
 FULLTEXT KEY FT1 (title)
 ) TYPE=MyISAM;
 insert into t1 (title) values ('this is a test');
+select * from t1 where match title against ('test' in boolean mode);
+id	title
+1	this is a test
 update t1 set title='this is A test' where id=1;
 check table t1;
 Table	Op	Msg_type	Msg_text

mysql-test/t/fulltext.test

@@ -118,7 +118,7 @@ select * from t2,t3 where MATCH (t2.inhalt,t3.inhalt) AGAINST ('foobar');
 drop table t1,t2,t3;
 
 #
-# two more bugtests
+# three more bugtests
 #
 
 CREATE TABLE t1 (
@@ -130,6 +130,7 @@ CREATE TABLE t1 (
 ) TYPE=MyISAM;
 
 insert into t1 (title) values ('this is a test');
+select * from t1 where match title against ('test' in boolean mode);
 update t1 set title='this is A test' where id=1;
 check table t1;
 update t1 set title='this test once revealed a bug' where id=1;