Function g_intbig_consistent

contrib/intarray/_intbig_gist.c:461–581

}

Datum
g_intbig_consistent(PG_FUNCTION_ARGS)
{
	GISTENTRY  *entry = (GISTENTRY *) PG_GETARG_POINTER(0);
	ArrayType  *query = PG_GETARG_ARRAYTYPE_P(1);
	StrategyNumber strategy = (StrategyNumber) PG_GETARG_UINT16(2);

	/* Oid		subtype = PG_GETARG_OID(3); */
	bool	   *recheck = (bool *) PG_GETARG_POINTER(4);
	int			siglen = GET_SIGLEN();
	bool		retval;

	/* All cases served by this function are inexact */
	*recheck = true;

	if (ISALLTRUE(DatumGetPointer(entry->key)))
		PG_RETURN_BOOL(true);

	if (strategy == BooleanSearchStrategy)
	{
		retval = signconsistent((QUERYTYPE *) query,
								GETSIGN(DatumGetPointer(entry->key)),
								siglen,
								false);
		PG_FREE_IF_COPY(query, 1);
		PG_RETURN_BOOL(retval);
	}

	CHECKARRVALID(query);

	switch (strategy)
	{
		case RTOverlapStrategyNumber:
			retval = _intbig_overlap((GISTTYPE *) DatumGetPointer(entry->key),
									 query, siglen);
			break;
		case RTSameStrategyNumber:
			if (GIST_LEAF(entry))
			{
				int			i,
							num = ARRNELEMS(query);
				int32	   *ptr = ARRPTR(query);
				BITVECP		dq = palloc0(siglen),
							de;

				while (num--)
				{
					HASH(dq, *ptr, siglen);
					ptr++;
				}

				de = GETSIGN((GISTTYPE *) DatumGetPointer(entry->key));
				retval = true;
				LOOPBYTE(siglen)
				{
					if (de[i] != dq[i])
					{
						retval = false;