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bug with indexless boolean fts fixed

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serg@serg.mysql.com 2002-03-04 13:17:49 +00:00
parent 863b5da02d
commit 2a973ced22
3 changed files with 20 additions and 6 deletions
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14
myisam/ft_boolean_search.c
View file

@ -81,17 +81,21 @@ typedef struct st_ft_info {
MI_INFO *info;
uint keynr;
enum { UNINITIALIZED, READY, INDEX_SEARCH, INDEX_DONE, SCAN } state;
uint with_scan;
FTB_EXPR *root;
QUEUE queue;
MEM_ROOT mem_root;
} FTB;
int FTB_WORD_cmp(void *v __attribute__((unused)), byte *a, byte *b)
int FTB_WORD_cmp(void *v __attribute__((unused)), FTB_WORD *a, FTB_WORD *b)
{
/* ORDER BY docid, ndepth DESC */
int i=CMP_NUM(((FTB_WORD *)a)->docid, ((FTB_WORD *)b)->docid);
int i=CMP_NUM(a->docid, b->docid);
if (!i)
i=CMP_NUM(((FTB_WORD *)b)->ndepth,((FTB_WORD *)a)->ndepth);
i=CMP_NUM(b->ndepth,a->ndepth);
if (!i)
i=_mi_compare_text(default_charset_info, b->word+1,b->len-1,
a->word+1,a->len-1,0);
return i;
}
@ -130,6 +134,7 @@ void _ftb_parse_query(FTB *ftb, byte **start, byte *end,
ftbw->word[0]=w.len;
if (ftbw->yesno > 0) up->ythresh++;
queue_insert(& ftb->queue, (byte *)ftbw);
ftb->with_scan|=ftbw->trunc;
break;
case 2: /* left bracket */
ftbe=(FTB_EXPR *)alloc_root(&ftb->mem_root, sizeof(FTB_EXPR));
@ -207,6 +212,7 @@ FT_INFO * ft_init_boolean_search(MI_INFO *info, uint keynr, byte *query,
ftb->state=UNINITIALIZED;
ftb->info=info;
ftb->keynr=keynr;
ftb->with_scan=0;
init_alloc_root(&ftb->mem_root, 1024, 1024);
@ -215,7 +221,7 @@ FT_INFO * ft_init_boolean_search(MI_INFO *info, uint keynr, byte *query,
*/
res=ftb->queue.max_elements=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, FTB_WORD_cmp, ftb);
reinit_queue(& ftb->queue, res, 0, 0, (int (*)(void*,byte*,byte*))FTB_WORD_cmp, ftb);
ftbe=(FTB_EXPR *)alloc_root(&ftb->mem_root, sizeof(FTB_EXPR));
ftbe->weight=1;
ftbe->yesno=ftbe->nos=1;

9
mysql-test/r/fulltext.result
View file

@ -48,7 +48,14 @@ Full-text search in MySQL implements vector space model
select * from t1 where MATCH(a,b) AGAINST("+search -(support vector)" IN BOOLEAN MODE);
a b
Function MATCH ... AGAINST() is used to do a search
select *, MATCH(a,b) AGAINST("support collections" IN BOOLEAN MODE) as x from t1;
select *, MATCH(a,b) AGAINST("support collections" IN BOOLEAN MODE) as x from t1;
a b x
MySQL has now support for full-text search 1
Full-text indexes are called collections 1
Only MyISAM tables support collections 2
Function MATCH ... AGAINST() is used to do a search 0
Full-text search in MySQL implements vector space model 0
select *, MATCH(a,b) AGAINST("collections support" IN BOOLEAN MODE) as x from t1;
a b x
MySQL has now support for full-text search 1
Full-text indexes are called collections 1

3
mysql-test/t/fulltext.test
View file

@ -27,7 +27,8 @@ select * from t1 where MATCH(a,b) AGAINST("+support +collections" IN BOOLEAN MOD
select * from t1 where MATCH(a,b) AGAINST("+search" IN BOOLEAN MODE);
select * from t1 where MATCH(a,b) AGAINST("+search +(support vector)" IN BOOLEAN MODE);
select * from t1 where MATCH(a,b) AGAINST("+search -(support vector)" IN BOOLEAN MODE);
select *, MATCH(a,b) AGAINST("support collections" IN BOOLEAN MODE) as x from t1;
select *, MATCH(a,b) AGAINST("support collections" IN BOOLEAN MODE) as x from t1;
select *, MATCH(a,b) AGAINST("collections support" IN BOOLEAN MODE) as x from t1;
# boolean w/o index: