-#include "hstore.h"
+/*
+ * contrib/hstore/hstore_gist.c
+ */
+#include "postgres.h"
#include "access/gist.h"
-#include "access/itup.h"
-/*#include "access/rtree.h"*/
-#include "crc32.h"
+#include "access/skey.h"
+#include "catalog/pg_type.h"
+#include "utils/builtins.h"
+#include "utils/pg_crc.h"
+
+#include "hstore.h"
/* bigint defines */
#define BITBYTE 8
-#define SIGLENINT 4 /* >122 => key will toast, so very slow!!! */
-#define SIGLEN ( sizeof(int)*SIGLENINT )
+#define SIGLENINT 4 /* >122 => key will toast, so very slow!!! */
+#define SIGLEN ( sizeof(int)*SIGLENINT )
#define SIGLENBIT (SIGLEN*BITBYTE)
typedef char BITVEC[SIGLEN];
#define SIGPTR(x) ( (BITVECP) ARR_DATA_PTR(x) )
-#define LOOPBYTE(a) \
- for(i=0;i<SIGLEN;i++) {\
- a;\
- }
+#define LOOPBYTE \
+ for(i=0;i<SIGLEN;i++)
-#define LOOPBIT(a) \
- for(i=0;i<SIGLENBIT;i++) {\
- a;\
- }
+#define LOOPBIT \
+ for(i=0;i<SIGLENBIT;i++)
/* beware of multiple evaluation of arguments to these macros! */
#define GETBYTE(x,i) ( *( (BITVECP)(x) + (int)( (i) / BITBYTE ) ) )
#define HASHVAL(val) (((unsigned int)(val)) % SIGLENBIT)
#define HASH(sign, val) SETBIT((sign), HASHVAL(val))
-typedef struct {
- int4 len;
- int4 flag;
- char data[1];
-} GISTTYPE;
+typedef struct
+{
+ int32 vl_len_; /* varlena header (do not touch directly!) */
+ int32 flag;
+ char data[1];
+} GISTTYPE;
-#define ALLISTRUE 0x04
+#define ALLISTRUE 0x04
-#define ISALLTRUE(x) ( ((GISTTYPE*)x)->flag & ALLISTRUE )
+#define ISALLTRUE(x) ( ((GISTTYPE*)x)->flag & ALLISTRUE )
-#define GTHDRSIZE ( sizeof(int4)*2 )
+#define GTHDRSIZE (VARHDRSZ + sizeof(int32))
#define CALCGTSIZE(flag) ( GTHDRSIZE+(((flag) & ALLISTRUE) ? 0 : SIGLEN) )
-
-#define GETSIGN(x) ( (BITVECP)( (char*)x+GTHDRSIZE ) )
-#define SUMBIT(val) ( \
+#define GETSIGN(x) ( (BITVECP)( (char*)x+GTHDRSIZE ) )
+
+#define SUMBIT(val) ( \
GETBITBYTE((val),0) + \
GETBITBYTE((val),1) + \
GETBITBYTE((val),2) + \
GETBITBYTE((val),7) \
)
-#ifdef GEVHDRSZ
#define GETENTRY(vec,pos) ((GISTTYPE *) DatumGetPointer((vec)->vector[(pos)].key))
-#else
-#define GETENTRY(vec,pos) ((GISTTYPE *) DatumGetPointer(((GISTENTRY *) VARDATA(vec))[(pos)].key))
-#endif
#define WISH_F(a,b,c) (double)( -(double)(((a)-(b))*((a)-(b))*((a)-(b)))*(c) )
PG_FUNCTION_INFO_V1(ghstore_in);
-Datum ghstore_in(PG_FUNCTION_ARGS);
+Datum ghstore_in(PG_FUNCTION_ARGS);
PG_FUNCTION_INFO_V1(ghstore_out);
-Datum ghstore_out(PG_FUNCTION_ARGS);
-
+Datum ghstore_out(PG_FUNCTION_ARGS);
+
Datum
-ghstore_in(PG_FUNCTION_ARGS) {
+ghstore_in(PG_FUNCTION_ARGS)
+{
elog(ERROR, "Not implemented");
PG_RETURN_DATUM(0);
}
Datum
-ghstore_out(PG_FUNCTION_ARGS) {
+ghstore_out(PG_FUNCTION_ARGS)
+{
elog(ERROR, "Not implemented");
PG_RETURN_DATUM(0);
}
PG_FUNCTION_INFO_V1(ghstore_union);
PG_FUNCTION_INFO_V1(ghstore_same);
-Datum ghstore_consistent(PG_FUNCTION_ARGS);
-Datum ghstore_compress(PG_FUNCTION_ARGS);
-Datum ghstore_decompress(PG_FUNCTION_ARGS);
-Datum ghstore_penalty(PG_FUNCTION_ARGS);
-Datum ghstore_picksplit(PG_FUNCTION_ARGS);
-Datum ghstore_union(PG_FUNCTION_ARGS);
-Datum ghstore_same(PG_FUNCTION_ARGS);
+Datum ghstore_consistent(PG_FUNCTION_ARGS);
+Datum ghstore_compress(PG_FUNCTION_ARGS);
+Datum ghstore_decompress(PG_FUNCTION_ARGS);
+Datum ghstore_penalty(PG_FUNCTION_ARGS);
+Datum ghstore_picksplit(PG_FUNCTION_ARGS);
+Datum ghstore_union(PG_FUNCTION_ARGS);
+Datum ghstore_same(PG_FUNCTION_ARGS);
+
+static int
+crc32_HStoreValue(HStoreValue *v, uint32 r)
+{
+ int crc;
+ char flag = '\0';
+
+ INIT_CRC32(crc);
+
+ switch(r)
+ {
+ case WHS_KEY:
+ flag = KEYFLAG;
+ break;
+ case WHS_VALUE:
+ flag = VALFLAG;
+ break;
+ case WHS_ELEM:
+ flag = ELEMFLAG;
+ break;
+ default:
+ break;
+ }
+
+ COMP_CRC32(crc, &flag, 1);
+
+ switch(v->type)
+ {
+ case hsvString:
+ COMP_CRC32(crc, v->string.val, v->string.len);
+ break;
+ case hsvBool:
+ flag = (v->boolean) ? 't' : 'f';
+ COMP_CRC32(crc, &flag, 1);
+ break;
+ case hsvNumeric:
+ crc = DatumGetInt32(DirectFunctionCall1(hash_numeric,
+ NumericGetDatum(v->numeric)));
+ break;
+ default:
+ elog(PANIC, "impossible value %d", v->type);
+ }
+
+ FIN_CRC32(crc);
+ return crc;
+}
+
+static int
+crc32_Key(char *buf, int sz)
+{
+ int crc;
+ char flag = KEYFLAG;
+
+ INIT_CRC32(crc);
+
+ COMP_CRC32(crc, &flag, 1);
+ COMP_CRC32(crc, buf, sz);
+
+ FIN_CRC32(crc);
+ return crc;
+}
Datum
-ghstore_compress(PG_FUNCTION_ARGS) {
+ghstore_compress(PG_FUNCTION_ARGS)
+{
GISTENTRY *entry = (GISTENTRY *) PG_GETARG_POINTER(0);
GISTENTRY *retval = entry;
-
- if (entry->leafkey) {
- GISTTYPE *res = (GISTTYPE*)palloc(CALCGTSIZE(0));
- HStore *toastedval = (HStore *) DatumGetPointer(entry->key);
- HStore *val = (HStore *) DatumGetPointer(PG_DETOAST_DATUM(entry->key));
- HEntry *ptr = ARRPTR(val);
- char *words = STRPTR(val);
-
- memset(res,0,CALCGTSIZE(0));
- res->len=CALCGTSIZE(0);
-
- while(ptr-ARRPTR(val) < val->size) {
- int h;
- h = crc32_sz((char*)(words+ptr->pos), ptr->keylen);
- HASH( GETSIGN(res), h);
- if ( !ptr->valisnull ) {
- h = crc32_sz((char *)(words+ptr->pos+ptr->keylen), ptr->vallen);
- HASH( GETSIGN(res), h);
+
+ if (entry->leafkey)
+ {
+ GISTTYPE *res = (GISTTYPE *) palloc0(CALCGTSIZE(0));
+ HStore *val = DatumGetHStoreP(entry->key);
+
+ SET_VARSIZE(res, CALCGTSIZE(0));
+
+ if (!HS_ISEMPTY(val))
+ {
+ int r;
+ HStoreIterator *it = HStoreIteratorInit(VARDATA(val));
+ HStoreValue v;
+
+ while((r = HStoreIteratorGet(&it, &v, false)) != 0)
+ {
+ if ((r == WHS_ELEM || r == WHS_KEY || r == WHS_VALUE) &&
+ v.type != hsvNull)
+ {
+ int h = crc32_HStoreValue(&v, r);
+
+ HASH(GETSIGN(res), h);
+ }
}
- ptr++;
}
- if (val != toastedval)
- pfree(val);
-
retval = (GISTENTRY *) palloc(sizeof(GISTENTRY));
gistentryinit(*retval, PointerGetDatum(res),
entry->rel, entry->page,
entry->offset,
-#ifndef PG_MODULE_MAGIC
- res->len,
-#endif
FALSE);
- } else if ( !ISALLTRUE(DatumGetPointer(entry->key)) ) {
- int4 i;
+ }
+ else if (!ISALLTRUE(DatumGetPointer(entry->key)))
+ {
+ int32 i;
GISTTYPE *res;
- BITVECP sign = GETSIGN(DatumGetPointer(entry->key));
-
- LOOPBYTE(
+ BITVECP sign = GETSIGN(DatumGetPointer(entry->key));
+
+ LOOPBYTE
+ {
if ((sign[i] & 0xff) != 0xff)
PG_RETURN_POINTER(retval);
- );
+ }
res = (GISTTYPE *) palloc(CALCGTSIZE(ALLISTRUE));
- res->len = CALCGTSIZE(ALLISTRUE);
+ SET_VARSIZE(res, CALCGTSIZE(ALLISTRUE));
res->flag = ALLISTRUE;
retval = (GISTENTRY *) palloc(sizeof(GISTENTRY));
gistentryinit(*retval, PointerGetDatum(res),
entry->rel, entry->page,
- entry->offset,
-#ifndef PG_MODULE_MAGIC
- res->len,
-#endif
+ entry->offset,
FALSE);
}
PG_RETURN_POINTER(retval);
}
+/*
+ * Since type ghstore isn't toastable (and doesn't need to be),
+ * this function can be a no-op.
+ */
Datum
-ghstore_decompress(PG_FUNCTION_ARGS) {
- PG_RETURN_DATUM(PG_GETARG_DATUM(0));
+ghstore_decompress(PG_FUNCTION_ARGS)
+{
+ PG_RETURN_POINTER(PG_GETARG_POINTER(0));
}
Datum
-ghstore_same(PG_FUNCTION_ARGS) {
+ghstore_same(PG_FUNCTION_ARGS)
+{
GISTTYPE *a = (GISTTYPE *) PG_GETARG_POINTER(0);
GISTTYPE *b = (GISTTYPE *) PG_GETARG_POINTER(1);
- bool *result = (bool *) PG_GETARG_POINTER(2);
+ bool *result = (bool *) PG_GETARG_POINTER(2);
if (ISALLTRUE(a) && ISALLTRUE(b))
*result = true;
*result = false;
else if (ISALLTRUE(b))
*result = false;
- else {
- int4 i;
- BITVECP sa = GETSIGN(a),
- sb = GETSIGN(b);
+ else
+ {
+ int32 i;
+ BITVECP sa = GETSIGN(a),
+ sb = GETSIGN(b);
+
*result = true;
- LOOPBYTE(
- if (sa[i] != sb[i]) {
+ LOOPBYTE
+ {
+ if (sa[i] != sb[i])
+ {
*result = false;
break;
}
- );
+ }
}
PG_RETURN_POINTER(result);
}
-static int4
-sizebitvec(BITVECP sign) {
- int4 size = 0, i;
- LOOPBYTE(
+static int32
+sizebitvec(BITVECP sign)
+{
+ int32 size = 0,
+ i;
+
+ LOOPBYTE
+ {
size += SUMBIT(sign);
sign = (BITVECP) (((char *) sign) + 1);
- );
+ }
return size;
}
-
+
static int
-hemdistsign(BITVECP a, BITVECP b) {
- int i,dist=0;
+hemdistsign(BITVECP a, BITVECP b)
+{
+ int i,
+ dist = 0;
- LOOPBIT(
- if ( GETBIT(a,i) != GETBIT(b,i) )
+ LOOPBIT
+ {
+ if (GETBIT(a, i) != GETBIT(b, i))
dist++;
- );
+ }
return dist;
}
static int
-hemdist(GISTTYPE *a, GISTTYPE *b) {
- if ( ISALLTRUE(a) ) {
+hemdist(GISTTYPE *a, GISTTYPE *b)
+{
+ if (ISALLTRUE(a))
+ {
if (ISALLTRUE(b))
return 0;
else
- return SIGLENBIT-sizebitvec(GETSIGN(b));
- } else if (ISALLTRUE(b))
- return SIGLENBIT-sizebitvec(GETSIGN(a));
+ return SIGLENBIT - sizebitvec(GETSIGN(b));
+ }
+ else if (ISALLTRUE(b))
+ return SIGLENBIT - sizebitvec(GETSIGN(a));
- return hemdistsign( GETSIGN(a), GETSIGN(b) );
+ return hemdistsign(GETSIGN(a), GETSIGN(b));
}
-static int4
-unionkey(BITVECP sbase, GISTTYPE * add)
+static int32
+unionkey(BITVECP sbase, GISTTYPE *add)
{
- int4 i;
- BITVECP sadd = GETSIGN(add);
+ int32 i;
+ BITVECP sadd = GETSIGN(add);
if (ISALLTRUE(add))
return 1;
- LOOPBYTE(
+ LOOPBYTE
sbase[i] |= sadd[i];
- );
return 0;
}
Datum
-ghstore_union(PG_FUNCTION_ARGS) {
-#ifdef GEVHDRSZ
- GistEntryVector *entryvec = (GistEntryVector *) PG_GETARG_POINTER(0);
- int4 len = entryvec->n;
-#else
- bytea *entryvec = (bytea *) PG_GETARG_POINTER(0);
- int4 len = (VARSIZE(entryvec) - VARHDRSZ) / sizeof(GISTENTRY);
-#endif
- int *size = (int *) PG_GETARG_POINTER(1);
- BITVEC base;
- int4 i;
- int4 flag = 0;
+ghstore_union(PG_FUNCTION_ARGS)
+{
+ GistEntryVector *entryvec = (GistEntryVector *) PG_GETARG_POINTER(0);
+ int32 len = entryvec->n;
+
+ int *size = (int *) PG_GETARG_POINTER(1);
+ BITVEC base;
+ int32 i;
+ int32 flag = 0;
GISTTYPE *result;
MemSet((void *) base, 0, sizeof(BITVEC));
- for (i = 0; i < len; i++) {
- if (unionkey(base, GETENTRY(entryvec, i))) {
+ for (i = 0; i < len; i++)
+ {
+ if (unionkey(base, GETENTRY(entryvec, i)))
+ {
flag = ALLISTRUE;
break;
}
len = CALCGTSIZE(flag);
result = (GISTTYPE *) palloc(len);
- *size = result->len = len;
+ SET_VARSIZE(result, len);
result->flag = flag;
if (!ISALLTRUE(result))
memcpy((void *) GETSIGN(result), (void *) base, sizeof(BITVEC));
+ *size = len;
PG_RETURN_POINTER(result);
}
Datum
-ghstore_penalty(PG_FUNCTION_ARGS) {
+ghstore_penalty(PG_FUNCTION_ARGS)
+{
GISTENTRY *origentry = (GISTENTRY *) PG_GETARG_POINTER(0); /* always ISSIGNKEY */
GISTENTRY *newentry = (GISTENTRY *) PG_GETARG_POINTER(1);
- float *penalty = (float *) PG_GETARG_POINTER(2);
+ float *penalty = (float *) PG_GETARG_POINTER(2);
GISTTYPE *origval = (GISTTYPE *) DatumGetPointer(origentry->key);
GISTTYPE *newval = (GISTTYPE *) DatumGetPointer(newentry->key);
- *penalty=hemdist(origval,newval);
+ *penalty = hemdist(origval, newval);
PG_RETURN_POINTER(penalty);
}
-typedef struct {
+typedef struct
+{
OffsetNumber pos;
- int4 cost;
+ int32 cost;
} SPLITCOST;
static int
-comparecost(const void *a, const void *b) {
- return ((SPLITCOST *) a)->cost - ((SPLITCOST *) b)->cost;
+comparecost(const void *a, const void *b)
+{
+ return ((const SPLITCOST *) a)->cost - ((const SPLITCOST *) b)->cost;
}
Datum
-ghstore_picksplit(PG_FUNCTION_ARGS) {
-#ifdef GEVHDRSZ
- GistEntryVector *entryvec = (GistEntryVector *) PG_GETARG_POINTER(0);
+ghstore_picksplit(PG_FUNCTION_ARGS)
+{
+ GistEntryVector *entryvec = (GistEntryVector *) PG_GETARG_POINTER(0);
OffsetNumber maxoff = entryvec->n - 2;
-#else
- bytea *entryvec = (bytea *) PG_GETARG_POINTER(0);
- OffsetNumber maxoff = ((VARSIZE(entryvec) - VARHDRSZ) / sizeof(GISTENTRY)) - 2;
-#endif
+
GIST_SPLITVEC *v = (GIST_SPLITVEC *) PG_GETARG_POINTER(1);
OffsetNumber k,
j;
- GISTTYPE *datum_l,
+ GISTTYPE *datum_l,
*datum_r;
- BITVECP union_l,
+ BITVECP union_l,
union_r;
- int4 size_alpha, size_beta;
- int4 size_waste,
+ int32 size_alpha,
+ size_beta;
+ int32 size_waste,
waste = -1;
- int4 nbytes;
+ int32 nbytes;
OffsetNumber seed_1 = 0,
seed_2 = 0;
OffsetNumber *left,
*right;
- BITVECP ptr;
- int i;
+ BITVECP ptr;
+ int i;
SPLITCOST *costvector;
- GISTTYPE *_k,
+ GISTTYPE *_k,
*_j;
nbytes = (maxoff + 2) * sizeof(OffsetNumber);
v->spl_left = (OffsetNumber *) palloc(nbytes);
v->spl_right = (OffsetNumber *) palloc(nbytes);
- for (k = FirstOffsetNumber; k < maxoff; k = OffsetNumberNext(k)) {
+ for (k = FirstOffsetNumber; k < maxoff; k = OffsetNumberNext(k))
+ {
_k = GETENTRY(entryvec, k);
- for (j = OffsetNumberNext(k); j <= maxoff; j = OffsetNumberNext(j)) {
- size_waste=hemdist(_k, GETENTRY(entryvec, j));
- if (size_waste > waste ) {
+ for (j = OffsetNumberNext(k); j <= maxoff; j = OffsetNumberNext(j))
+ {
+ size_waste = hemdist(_k, GETENTRY(entryvec, j));
+ if (size_waste > waste)
+ {
waste = size_waste;
seed_1 = k;
seed_2 = j;
}
/* form initial .. */
- if (ISALLTRUE(GETENTRY(entryvec, seed_1))) {
+ if (ISALLTRUE(GETENTRY(entryvec, seed_1)))
+ {
datum_l = (GISTTYPE *) palloc(GTHDRSIZE);
- datum_l->len = GTHDRSIZE;
+ SET_VARSIZE(datum_l, GTHDRSIZE);
datum_l->flag = ALLISTRUE;
- } else {
+ }
+ else
+ {
datum_l = (GISTTYPE *) palloc(GTHDRSIZE + SIGLEN);
- datum_l->len = GTHDRSIZE + SIGLEN;
+ SET_VARSIZE(datum_l, GTHDRSIZE + SIGLEN);
datum_l->flag = 0;
- memcpy((void *) GETSIGN(datum_l), (void *) GETSIGN(GETENTRY(entryvec, seed_1)), sizeof(BITVEC))
-;
+ memcpy((void *) GETSIGN(datum_l),
+ (void *) GETSIGN(GETENTRY(entryvec, seed_1)), sizeof(BITVEC))
+ ;
}
- if (ISALLTRUE(GETENTRY(entryvec, seed_2))) {
+ if (ISALLTRUE(GETENTRY(entryvec, seed_2)))
+ {
datum_r = (GISTTYPE *) palloc(GTHDRSIZE);
- datum_r->len = GTHDRSIZE;
+ SET_VARSIZE(datum_r, GTHDRSIZE);
datum_r->flag = ALLISTRUE;
- } else {
+ }
+ else
+ {
datum_r = (GISTTYPE *) palloc(GTHDRSIZE + SIGLEN);
- datum_r->len = GTHDRSIZE + SIGLEN;
+ SET_VARSIZE(datum_r, GTHDRSIZE + SIGLEN);
datum_r->flag = 0;
- memcpy((void *) GETSIGN(datum_r), (void *) GETSIGN(GETENTRY(entryvec, seed_2)), sizeof(BITVEC)) ;
+ memcpy((void *) GETSIGN(datum_r),
+ (void *) GETSIGN(GETENTRY(entryvec, seed_2)), sizeof(BITVEC));
}
maxoff = OffsetNumberNext(maxoff);
{
costvector[j - 1].pos = j;
_j = GETENTRY(entryvec, j);
- size_alpha = hemdist(datum_l,_j);
- size_beta = hemdist(datum_r,_j);
+ size_alpha = hemdist(datum_l, _j);
+ size_beta = hemdist(datum_r, _j);
costvector[j - 1].cost = abs(size_alpha - size_beta);
}
qsort((void *) costvector, maxoff, sizeof(SPLITCOST), comparecost);
- union_l=GETSIGN(datum_l);
- union_r=GETSIGN(datum_r);
+ union_l = GETSIGN(datum_l);
+ union_r = GETSIGN(datum_r);
- for (k = 0; k < maxoff; k++) {
+ for (k = 0; k < maxoff; k++)
+ {
j = costvector[k].pos;
- if (j == seed_1) {
+ if (j == seed_1)
+ {
*left++ = j;
v->spl_nleft++;
continue;
- } else if (j == seed_2) {
+ }
+ else if (j == seed_2)
+ {
*right++ = j;
v->spl_nright++;
continue;
}
_j = GETENTRY(entryvec, j);
- size_alpha = hemdist(datum_l,_j);
- size_beta = hemdist(datum_r,_j);
+ size_alpha = hemdist(datum_l, _j);
+ size_beta = hemdist(datum_r, _j);
- if (size_alpha < size_beta + WISH_F(v->spl_nleft, v->spl_nright, 0.0001)) {
- if (ISALLTRUE(datum_l) || ISALLTRUE(_j) ) {
+ if (size_alpha < size_beta + WISH_F(v->spl_nleft, v->spl_nright, 0.0001))
+ {
+ if (ISALLTRUE(datum_l) || ISALLTRUE(_j))
+ {
if (!ISALLTRUE(datum_l))
MemSet((void *) union_l, 0xff, sizeof(BITVEC));
- } else {
- ptr=GETSIGN(_j);
- LOOPBYTE(
+ }
+ else
+ {
+ ptr = GETSIGN(_j);
+ LOOPBYTE
union_l[i] |= ptr[i];
- );
}
*left++ = j;
v->spl_nleft++;
- } else {
- if (ISALLTRUE(datum_r) || ISALLTRUE(_j) ) {
+ }
+ else
+ {
+ if (ISALLTRUE(datum_r) || ISALLTRUE(_j))
+ {
if (!ISALLTRUE(datum_r))
MemSet((void *) union_r, 0xff, sizeof(BITVEC));
- } else {
- ptr=GETSIGN(_j);
- LOOPBYTE(
+ }
+ else
+ {
+ ptr = GETSIGN(_j);
+ LOOPBYTE
union_r[i] |= ptr[i];
- );
}
*right++ = j;
v->spl_nright++;
}
*right = *left = FirstOffsetNumber;
- pfree(costvector);
v->spl_ldatum = PointerGetDatum(datum_l);
v->spl_rdatum = PointerGetDatum(datum_r);
PG_RETURN_POINTER(v);
}
+Datum
+ghstore_consistent(PG_FUNCTION_ARGS)
+{
+ GISTTYPE *entry = (GISTTYPE *) DatumGetPointer(((GISTENTRY *) PG_GETARG_POINTER(0))->key);
+ StrategyNumber strategy = (StrategyNumber) PG_GETARG_UINT16(2);
+
+ /* Oid subtype = PG_GETARG_OID(3); */
+ bool *recheck = (bool *) PG_GETARG_POINTER(4);
+ bool res = true;
+ BITVECP sign;
-Datum
-ghstore_consistent(PG_FUNCTION_ARGS) {
- GISTTYPE *entry = (GISTTYPE*) DatumGetPointer( ((GISTENTRY *) PG_GETARG_POINTER(0))->key );
- HStore *query=PG_GETARG_HS(1);
- bool res=true;
- HEntry *qe = ARRPTR(query);
- char *qv = STRPTR(query);
- BITVECP sign;
+ /* All cases served by this function are inexact */
+ *recheck = true;
- if ( ISALLTRUE(entry) ) {
- PG_FREE_IF_COPY(query,1);
+ if (ISALLTRUE(entry))
PG_RETURN_BOOL(true);
+
+ sign = GETSIGN(entry);
+
+ if (strategy == HStoreContainsStrategyNumber ||
+ strategy == HStoreOldContainsStrategyNumber)
+ {
+ BITVECP qe;
+ int i;
+
+ qe = fcinfo->flinfo->fn_extra;
+ if (qe == NULL)
+ {
+ HStore *query = PG_GETARG_HS(1);
+
+ qe = MemoryContextAlloc(fcinfo->flinfo->fn_mcxt, sizeof(BITVEC));
+ memset(qe, 0, sizeof(BITVEC));
+
+ if (!HS_ISEMPTY(query))
+ {
+ int r;
+ HStoreIterator *it = HStoreIteratorInit(VARDATA(query));
+ HStoreValue v;
+
+ while((r = HStoreIteratorGet(&it, &v, false)) != 0)
+ {
+ if ((r == WHS_ELEM || r == WHS_KEY || r == WHS_VALUE) && v.type != hsvNull)
+ {
+ int crc = crc32_HStoreValue(&v, r);
+
+ HASH(qe, crc);
+ }
+ }
+ }
+
+ fcinfo->flinfo->fn_extra = qe;
+ }
+
+ LOOPBYTE
+ {
+ if ((sign[i] & qe[i]) != qe[i])
+ {
+ res = false;
+ break;
+ }
+ }
+ }
+ else if (strategy == HStoreExistsStrategyNumber)
+ {
+ int *qval;
+
+ qval = fcinfo->flinfo->fn_extra;
+ if (qval == NULL)
+ {
+ text *query = PG_GETARG_TEXT_PP(1);
+ int crc = crc32_Key(VARDATA_ANY(query), VARSIZE_ANY_EXHDR(query));
+
+ qval = MemoryContextAlloc(fcinfo->flinfo->fn_mcxt, sizeof(*qval));
+ *qval = HASHVAL(crc);
+
+ fcinfo->flinfo->fn_extra = qval;
+ }
+
+ res = (GETBIT(sign, *qval)) ? true : false;
}
+ else if (strategy == HStoreExistsAllStrategyNumber ||
+ strategy == HStoreExistsAnyStrategyNumber)
+ {
+ BITVECP arrentry;
+ int i;
+
+ arrentry = fcinfo->flinfo->fn_extra;
+ if (arrentry == NULL)
+ {
+ ArrayType *query = PG_GETARG_ARRAYTYPE_P(1);
+ Datum *key_datums;
+ bool *key_nulls;
+ int key_count;
+
+ arrentry = MemoryContextAlloc(fcinfo->flinfo->fn_mcxt,
+ sizeof(BITVEC));
+ memset(arrentry, 0, sizeof(BITVEC));
+
+ deconstruct_array(query,
+ TEXTOID, -1, false, 'i',
+ &key_datums, &key_nulls, &key_count);
+
+ for (i = 0; i < key_count; ++i)
+ {
+ int crc;
+
+ if (key_nulls[i])
+ continue;
+ crc = crc32_Key(VARDATA(key_datums[i]),
+ VARSIZE(key_datums[i]) - VARHDRSZ);
+ HASH(arrentry, crc);
+ }
- sign=GETSIGN(entry);
- while(res && qe-ARRPTR(query) < query->size) {
- int crc = crc32_sz((char *)(qv + qe->pos), qe->keylen);
- if (GETBIT(sign,HASHVAL(crc))) {
- if ( !qe->valisnull ) {
- crc = crc32_sz((char *)(qv + qe->pos + qe->keylen), qe->vallen);
- if ( !GETBIT(sign,HASHVAL(crc)) )
- res=false;
+ fcinfo->flinfo->fn_extra = arrentry;
+ }
+
+ if (strategy == HStoreExistsAllStrategyNumber)
+ {
+ LOOPBYTE
+ {
+ if ((sign[i] & arrentry[i]) != arrentry[i])
+ {
+ res = false;
+ break;
+ }
+ }
+ }
+ else /* HStoreExistsAnyStrategyNumber */
+ {
+ res = false;
+
+ LOOPBYTE
+ {
+ if (sign[i] & arrentry[i])
+ {
+ res = true;
+ break;
+ }
}
- } else
- res=false;
- qe++;
+ }
}
+ else
+ elog(ERROR, "Unsupported strategy number: %d", strategy);
- PG_FREE_IF_COPY(query,1);
PG_RETURN_BOOL(res);
}
-
-
projects / hstore.git / blobdiff