Datum
hstore_in(PG_FUNCTION_ARGS)
{
HSParser state;
int4 len,
buflen,
i;
HStore *out;
HEntry *entries;
char *ptr;
state.begin = PG_GETARG_CSTRING(0);
parse_hstore(&state);
if (state.pcur == 0)
{
freeHSParse(&state);
len = CALCDATASIZE(0, 0);
out = palloc(len);
out->len = len;
out->size = 0;
PG_RETURN_POINTER(out);
}
state.pcur = uniquePairs(state.pairs, state.pcur, &buflen);
len = CALCDATASIZE(state.pcur, buflen);
out = palloc(len);
out->len = len;
out->size = state.pcur;
entries = ARRPTR(out);
ptr = STRPTR(out);
for (i = 0; i < out->size; i++)
{
entries[i].keylen = state.pairs[i].keylen;
entries[i].pos = ptr - STRPTR(out);
memcpy(ptr, state.pairs[i].key, state.pairs[i].keylen);
ptr += entries[i].keylen;
entries[i].valisnull = state.pairs[i].isnull;
if (entries[i].valisnull)
entries[i].vallen = 4; /* null */
else
{
entries[i].vallen = state.pairs[i].vallen;
memcpy(ptr, state.pairs[i].val, state.pairs[i].vallen);
ptr += entries[i].vallen;
}
}
freeHSParse(&state);
PG_RETURN_POINTER(out);
}
Datum
hstore_in(PG_FUNCTION_ARGS)
{
HSParser state;
int4 buflen;
HStore *out;
state.begin = PG_GETARG_CSTRING(0);
parse_hstore(&state);
state.pcur = hstoreUniquePairs(state.pairs, state.pcur, &buflen);
out = hstorePairs(state.pairs, state.pcur, buflen);
PG_RETURN_POINTER(out);
}
