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Postgres FD Implementation
Commit 476045a2 authored by Teodor Sigaev's avatar Teodor Sigaev
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Remove QueryOperand->istrue flag, it was used only in cover ranking 

(ts_rank_cd). Use palloc'ed array in ranking instead of flag.
parent 13553cbb
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Showing with 49 additions and 48 deletions
src/backend/utils/adt/tsquery.c
View file @ 476045a2
......@@ -7,7 +7,7 @@
*
*
* IDENTIFICATION
* $PostgreSQL: pgsql/src/backend/utils/adt/tsquery.c,v 1.6 2007/09/10 12:36:40 teodor Exp $
* $PostgreSQL: pgsql/src/backend/utils/adt/tsquery.c,v 1.7 2007/09/11 16:01:40 teodor Exp $
*
*-------------------------------------------------------------------------
*/
......@@ -784,8 +784,6 @@ tsquerysend(PG_FUNCTION_ARGS)
case QI_VAL:
pq_sendint(&buf, item->operand.weight, sizeof(uint8));
pq_sendstring(&buf, GETOPERAND(query) + item->operand.distance);
/* istrue flag is just for temporary use in tsrank.c/Cover,
* so we don't need to transfer that */
break;
case QI_OPR:
pq_sendint(&buf, item->operator.oper, sizeof(item->operator.oper));
......
src/backend/utils/adt/tsrank.c
View file @ 476045a2
......@@ -7,7 +7,7 @@
*
*
* IDENTIFICATION
* $PostgreSQL: pgsql/src/backend/utils/adt/tsrank.c,v 1.5 2007/09/11 08:46:29 teodor Exp $
* $PostgreSQL: pgsql/src/backend/utils/adt/tsrank.c,v 1.6 2007/09/11 16:01:40 teodor Exp $
*
*-------------------------------------------------------------------------
*/
......@@ -476,25 +476,20 @@ compareDocR(const void *va, const void *vb)
return (a->pos > b->pos) ? 1 : -1;
}
static bool
checkcondition_QueryOperand(void *checkval, QueryOperand *val)
typedef struct
{
return (bool) (val->istrue);
}
TSQuery query;
bool *operandexist;
} QueryRepresentation;
static void
reset_istrue_flag(TSQuery query)
{
QueryItem *item = GETQUERY(query);
int i;
#define QR_GET_OPERAND_EXISTS(q, v) ( (q)->operandexist[ ((QueryItem*)(v)) - GETQUERY((q)->query) ] )
#define QR_SET_OPERAND_EXISTS(q, v) QR_GET_OPERAND_EXISTS(q,v) = true
/* reset istrue flag */
for (i = 0; i < query->size; i++)
{
if (item->type == QI_VAL)
item->operand.istrue = 0;
item++;
}
static bool
checkcondition_QueryOperand(void *checkval, QueryOperand *val)
{
QueryRepresentation *qr = (QueryRepresentation*)checkval;
return QR_GET_OPERAND_EXISTS(qr, val);
}
typedef struct
......@@ -508,7 +503,7 @@ typedef struct
static bool
Cover(DocRepresentation *doc, int len, TSQuery query, Extention *ext)
Cover(DocRepresentation *doc, int len, QueryRepresentation *qr, Extention *ext)
{
DocRepresentation *ptr;
int lastpos = ext->pos;
......@@ -519,7 +514,7 @@ Cover(DocRepresentation *doc, int len, TSQuery query, Extention *ext)
* (though any decent compiler will optimize away the tail-recursion. */
check_stack_depth();
reset_istrue_flag(query);
memset( qr->operandexist, 0, sizeof(bool)*qr->query->size );
ext->p = 0x7fffffff;
ext->q = 0;
......@@ -531,9 +526,9 @@ Cover(DocRepresentation *doc, int len, TSQuery query, Extention *ext)
for (i = 0; i < ptr->nitem; i++)
{
if(ptr->item[i]->type == QI_VAL)
ptr->item[i]->operand.istrue = 1;
QR_SET_OPERAND_EXISTS(qr, ptr->item[i]);
}
if (TS_execute(GETQUERY(query), NULL, false, checkcondition_QueryOperand))
if (TS_execute(GETQUERY(qr->query), (void*)qr, false, checkcondition_QueryOperand))
{
if (ptr->pos > ext->q)
{
......@@ -550,7 +545,7 @@ Cover(DocRepresentation *doc, int len, TSQuery query, Extention *ext)
if (!found)
return false;
reset_istrue_flag(query);
memset( qr->operandexist, 0, sizeof(bool)*qr->query->size );
ptr = doc + lastpos;
......@@ -559,8 +554,8 @@ Cover(DocRepresentation *doc, int len, TSQuery query, Extention *ext)
{
for (i = 0; i < ptr->nitem; i++)
if(ptr->item[i]->type == QI_VAL)
ptr->item[i]->operand.istrue = 1;
if (TS_execute(GETQUERY(query), NULL, true, checkcondition_QueryOperand))
QR_SET_OPERAND_EXISTS(qr, ptr->item[i]);
if (TS_execute(GETQUERY(qr->query), (void*)qr, true, checkcondition_QueryOperand))
{
if (ptr->pos < ext->p)
{
......@@ -583,28 +578,27 @@ Cover(DocRepresentation *doc, int len, TSQuery query, Extention *ext)
}
ext->pos++;
return Cover(doc, len, query, ext);
return Cover(doc, len, qr, ext);
}
static DocRepresentation *
get_docrep(TSVector txt, TSQuery query, int *doclen)
get_docrep(TSVector txt, QueryRepresentation *qr, int *doclen)
{
QueryItem *item = GETQUERY(query);
QueryItem *item = GETQUERY(qr->query);
WordEntry *entry;
WordEntryPos *post;
int4 dimt,
j,
i;
int len = query->size * 4,
int len = qr->query->size * 4,
cur = 0;
DocRepresentation *doc;
char *operand;
doc = (DocRepresentation *) palloc(sizeof(DocRepresentation) * len);
operand = GETOPERAND(query);
reset_istrue_flag(query);
operand = GETOPERAND(qr->query);
for (i = 0; i < query->size; i++)
for (i = 0; i < qr->query->size; i++)
{
QueryOperand *curoperand;
......@@ -613,10 +607,10 @@ get_docrep(TSVector txt, TSQuery query, int *doclen)
curoperand = &item[i].operand;
if(item[i].operand.istrue)
if(QR_GET_OPERAND_EXISTS(qr, &item[i]))
continue;
entry = find_wordentry(txt, query, curoperand);
entry = find_wordentry(txt, qr->query, curoperand);
if (!entry)
continue;
......@@ -644,9 +638,9 @@ get_docrep(TSVector txt, TSQuery query, int *doclen)
int k;
doc[cur].nitem = 0;
doc[cur].item = (QueryItem **) palloc(sizeof(QueryItem *) * query->size);
doc[cur].item = (QueryItem **) palloc(sizeof(QueryItem *) * qr->query->size);
for (k = 0; k < query->size; k++)
for (k = 0; k < qr->query->size; k++)
{
QueryOperand *kptr = &item[k].operand;
QueryOperand *iptr = &item[i].operand;
......@@ -658,7 +652,7 @@ get_docrep(TSVector txt, TSQuery query, int *doclen)
/* if k == i, we've already checked above that it's type == Q_VAL */
doc[cur].item[doc[cur].nitem] = item + k;
doc[cur].nitem++;
item[k].operand.istrue = 1;
QR_SET_OPERAND_EXISTS( qr, item+k );
}
}
}
......@@ -699,6 +693,8 @@ calc_rank_cd(float4 *arrdata, TSVector txt, TSQuery query, int method)
PrevExtPos = 0.0,
CurExtPos = 0.0;
int NExtent = 0;
QueryRepresentation qr;
for (i = 0; i < lengthof(weights); i++)
{
......@@ -710,12 +706,18 @@ calc_rank_cd(float4 *arrdata, TSVector txt, TSQuery query, int method)
invws[i] = 1.0 / invws[i];
}
doc = get_docrep(txt, query, &doclen);
qr.query = query;
qr.operandexist = (int*)palloc0(sizeof(bool) * query->size);
doc = get_docrep(txt, &qr, &doclen);
if (!doc)
{
pfree( qr.operandexist );
return 0.0;
}
MemSet(&ext, 0, sizeof(Extention));
while (Cover(doc, doclen, query, &ext))
while (Cover(doc, doclen, &qr, &ext))
{
double Cpos = 0.0;
double InvSum = 0.0;
......@@ -771,6 +773,8 @@ calc_rank_cd(float4 *arrdata, TSVector txt, TSQuery query, int method)
pfree(doc);
pfree( qr.operandexist );
return (float4) Wdoc;
}
......@@ -779,7 +783,7 @@ ts_rankcd_wttf(PG_FUNCTION_ARGS)
{
ArrayType *win = (ArrayType *) PG_DETOAST_DATUM(PG_GETARG_DATUM(0));
TSVector txt = PG_GETARG_TSVECTOR(1);
TSQuery query = PG_GETARG_TSQUERY_COPY(2); /* copy because we modify the istrue-flag */
TSQuery query = PG_GETARG_TSQUERY(2);
int method = PG_GETARG_INT32(3);
float res;
......@@ -796,7 +800,7 @@ ts_rankcd_wtt(PG_FUNCTION_ARGS)
{
ArrayType *win = (ArrayType *) PG_DETOAST_DATUM(PG_GETARG_DATUM(0));
TSVector txt = PG_GETARG_TSVECTOR(1);
TSQuery query = PG_GETARG_TSQUERY_COPY(2); /* copy because we modify the istrue-flag */
TSQuery query = PG_GETARG_TSQUERY(2);
float res;
res = calc_rank_cd(getWeights(win), txt, query, DEF_NORM_METHOD);
......@@ -811,7 +815,7 @@ Datum
ts_rankcd_ttf(PG_FUNCTION_ARGS)
{
TSVector txt = PG_GETARG_TSVECTOR(0);
TSQuery query = PG_GETARG_TSQUERY_COPY(1); /* copy because we modify the istrue-flag */
TSQuery query = PG_GETARG_TSQUERY(1);
int method = PG_GETARG_INT32(2);
float res;
......@@ -826,7 +830,7 @@ Datum
ts_rankcd_tt(PG_FUNCTION_ARGS)
{
TSVector txt = PG_GETARG_TSVECTOR(0);
TSQuery query = PG_GETARG_TSQUERY_COPY(1); /* copy because we modify the istrue-flag */
TSQuery query = PG_GETARG_TSQUERY(1);
float res;
res = calc_rank_cd(getWeights(NULL), txt, query, DEF_NORM_METHOD);
......
src/include/tsearch/ts_type.h
View file @ 476045a2
......@@ -5,7 +5,7 @@
*
* Copyright (c) 1998-2007, PostgreSQL Global Development Group
*
* $PostgreSQL: pgsql/src/include/tsearch/ts_type.h,v 1.5 2007/09/11 08:46:29 teodor Exp $
* $PostgreSQL: pgsql/src/include/tsearch/ts_type.h,v 1.6 2007/09/11 16:01:40 teodor Exp $
*
*-------------------------------------------------------------------------
*/
......@@ -187,8 +187,7 @@ typedef struct
/* pointer to text value of operand, must correlate with WordEntry */
uint32
istrue:1, /* use for ranking in Cover */
length:11,
length:12,
distance:20;
} QueryOperand;
......
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