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boolean fulltext search without an index

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This commit is contained in:
serg@serg.mysql.com
2001-11-28 17:55:45 +01:00
parent 79258183fd
commit 4a5ca1073b
13 changed files with 113 additions and 118 deletions
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22
myisam/ft_boolean_search.c
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@ -152,13 +152,16 @@ void _ftb_init_index_search(FT_INFO *ftb)
int i, r;
FTB_WORD *ftbw;
MI_INFO *info=ftb->info;
MI_KEYDEF *keyinfo=info->s->keyinfo+ftb->keynr;
my_off_t keyroot=info->s->state.key_root[ftb->keynr];
MI_KEYDEF *keyinfo;
my_off_t keyroot;
if (ftb->state != READY)
if (ftb->state != READY || ftb->keynr == NO_SUCH_KEY)
return;
ftb->state=INDEX_SEARCH;
keyinfo=info->s->keyinfo+ftb->keynr;
keyroot=info->s->state.key_root[ftb->keynr];
for (i=ftb->queue.elements; i; i--)
{
ftbw=(FTB_WORD *)(ftb->queue.root[i]);
@ -352,14 +355,17 @@ int ft_boolean_read_next(FT_INFO *ftb, char *record)
return my_errno=HA_ERR_END_OF_FILE;
}
float ft_boolean_find_relevance(FT_INFO *ftb, my_off_t docid, byte *record)
float ft_boolean_find_relevance(FT_INFO *ftb, byte *record, uint length)
{
TREE ptree;
FT_WORD word;
FTB_WORD *ftbw;
FTB_EXPR *ftbe;
uint i;
my_off_t docid=ftb->info->lastpos;
if (docid == HA_POS_ERROR)
return -2.0;
if (ftb->state == READY || ftb->state == INDEX_DONE)
{
for (i=1; i<=ftb->queue.elements; i++)
@ -382,11 +388,13 @@ float ft_boolean_find_relevance(FT_INFO *ftb, my_off_t docid, byte *record)
ftb->state=SCAN;
}
else if (ftb->state != SCAN)
return -2.0;
return -3.0;
bzero(&ptree, sizeof(ptree));
if (_mi_ft_parse(& ptree, ftb->info, ftb->keynr, record))
return -3.0;
if ((ftb->keynr==NO_SUCH_KEY)
? ft_parse(& ptree, record, length)
: _mi_ft_parse(& ptree, ftb->info, ftb->keynr, record))
return -4.0;
for (i=1; i<=ftb->queue.elements; i++)
{