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Two-level index structure for FULLTEXT indexes

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This commit is contained in:
serg@serg.mysql.com
2003-01-21 19:24:34 +01:00
parent 241f4143e8
commit 0dff67cba2
25 changed files with 1556 additions and 354 deletions
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32
myisam/ft_parser.c
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@ -18,21 +18,10 @@
#include "ftdefs.h"
#ifdef EVAL_RUN
#ifdef PIVOT_STAT
ulong collstat=0;
#endif
#endif /* EVAL_RUN */
typedef struct st_ft_docstat {
FT_WORD *list;
uint uniq;
double sum;
#ifdef EVAL_RUN
uint words, totlen;
double max, nsum, nsum2;
#endif /* EVAL_RUN */
} FT_DOCSTAT;
static int FT_WORD_cmp(CHARSET_INFO* cs, FT_WORD *w1, FT_WORD *w2)
@ -44,15 +33,7 @@ static int FT_WORD_cmp(CHARSET_INFO* cs, FT_WORD *w1, FT_WORD *w2)
static int walk_and_copy(FT_WORD *word,uint32 count,FT_DOCSTAT *docstat)
{
word->weight=LWS_IN_USE;
#ifdef EVAL_RUN
word->cnt= (uchar) count;
if(docstat->max < word->weight) docstat->max=word->weight;
docstat->words+=count;
docstat->totlen+=word->len;
#endif /* EVAL_RUN */
docstat->sum+=word->weight;
memcpy_fixed((docstat->list)++,word,sizeof(FT_WORD));
return 0;
}
@ -70,9 +51,6 @@ FT_WORD * ft_linearize(TREE *wtree)
{
docstat.list=wlist;
docstat.uniq=wtree->elements_in_tree;
#ifdef EVAL_RUN
docstat.nsum=docstat.nsum2=docstat.max=docstat.words=docstat.totlen=
#endif /* EVAL_RUN */
docstat.sum=0;
tree_walk(wtree,(tree_walk_action)&walk_and_copy,&docstat,left_root_right);
}
@ -85,18 +63,8 @@ FT_WORD * ft_linearize(TREE *wtree)
for (p=wlist;p->pos;p++)
{
p->weight=PRENORM_IN_USE;
#ifdef EVAL_RUN
docstat.nsum+=p->weight;
docstat.nsum2+=p->weight*p->weight;
#endif /* EVAL_RUN */
}
#ifdef EVAL_RUN
#ifdef PIVOT_STAT
collstat+=PIVOT_STAT;
#endif
#endif /* EVAL_RUN */
for (p=wlist;p->pos;p++)
{
p->weight/=NORM_IN_USE;