C++ (Cpp) gbt_var_key_copy Examples

Example #1

File: btree_utils_var.c Project: GisKook/Gis

GISTENTRY *
gbt_var_compress(GISTENTRY *entry, const gbtree_vinfo *tinfo)
{

	GISTENTRY  *retval;

	if (entry->leafkey)
	{
		GBT_VARKEY *r = NULL;
		bytea	   *leaf = (bytea *) DatumGetPointer(PG_DETOAST_DATUM(entry->key));
		GBT_VARKEY_R u;

		u.lower = u.upper = leaf;
		r = gbt_var_key_copy(&u, FALSE);

		retval = palloc(sizeof(GISTENTRY));
		gistentryinit(*retval, PointerGetDatum(r),
					  entry->rel, entry->page,
					  entry->offset, TRUE);
	}
	else
		retval = entry;

	return (retval);
}

Example #2

File: btree_utils_var.c Project: Marketcircle/postgres

void
gbt_var_bin_union(Datum *u, GBT_VARKEY *e, Oid collation,
				  const gbtree_vinfo *tinfo)
{
	GBT_VARKEY_R eo = gbt_var_key_readable(e);
	GBT_VARKEY_R nr;

	if (eo.lower == eo.upper)	/* leaf */
	{
		GBT_VARKEY *tmp;

		tmp = gbt_var_leaf2node(e, tinfo);
		if (tmp != e)
			eo = gbt_var_key_readable(tmp);
	}

	if (DatumGetPointer(*u))
	{
		GBT_VARKEY_R ro = gbt_var_key_readable((GBT_VARKEY *) DatumGetPointer(*u));
		bool		update = false;

		nr.lower = ro.lower;
		nr.upper = ro.upper;

		if ((*tinfo->f_cmp) (ro.lower, eo.lower, collation) > 0)
		{
			nr.lower = eo.lower;
			update = true;
		}

		if ((*tinfo->f_cmp) (ro.upper, eo.upper, collation) < 0)
		{
			nr.upper = eo.upper;
			update = true;
		}

		if (update)
			*u = PointerGetDatum(gbt_var_key_copy(&nr));
	}
	else
	{
		nr.lower = eo.lower;
		nr.upper = eo.upper;
		*u = PointerGetDatum(gbt_var_key_copy(&nr));
	}
}

Example #3

File: btree_utils_var.c Project: GisKook/Gis

void
gbt_var_bin_union(Datum *u, GBT_VARKEY *e, Oid collation,
				  const gbtree_vinfo *tinfo)
{
	GBT_VARKEY *nk = NULL;
	GBT_VARKEY *tmp = NULL;
	GBT_VARKEY_R nr;
	GBT_VARKEY_R eo = gbt_var_key_readable(e);

	if (eo.lower == eo.upper)	/* leaf */
	{
		tmp = gbt_var_leaf2node(e, tinfo);
		if (tmp != e)
			eo = gbt_var_key_readable(tmp);
	}

	if (DatumGetPointer(*u))
	{

		GBT_VARKEY_R ro = gbt_var_key_readable((GBT_VARKEY *) DatumGetPointer(*u));

		if ((*tinfo->f_cmp) (ro.lower, eo.lower, collation) > 0)
		{
			nr.lower = eo.lower;
			nr.upper = ro.upper;
			nk = gbt_var_key_copy(&nr, TRUE);
		}

		if ((*tinfo->f_cmp) (ro.upper, eo.upper, collation) < 0)
		{
			nr.upper = eo.upper;
			nr.lower = ro.lower;
			nk = gbt_var_key_copy(&nr, TRUE);
		}

		if (nk)
			*u = PointerGetDatum(nk);
	}
	else
	{
		nr.lower = eo.lower;
		nr.upper = eo.upper;
		*u = PointerGetDatum(gbt_var_key_copy(&nr, TRUE));
	}
}

Example #4

File: btree_bit.c Project: 0x0FFF/postgres

static GBT_VARKEY *
gbt_bit_l2n(GBT_VARKEY *leaf)
{
	GBT_VARKEY *out = leaf;
	GBT_VARKEY_R r = gbt_var_key_readable(leaf);
	bytea	   *o;

	o = gbt_bit_xfrm(r.lower);
	r.upper = r.lower = o;
	out = gbt_var_key_copy(&r);
	pfree(o);

	return out;

}

Example #5

File: btree_utils_var.c Project: GisKook/Gis

GBT_VARKEY *
gbt_var_union(const GistEntryVector *entryvec, int32 *size, Oid collation,
			  const gbtree_vinfo *tinfo)
{

	int			i = 0,
				numranges = entryvec->n;
	GBT_VARKEY *cur;
	Datum		out;
	GBT_VARKEY_R rk;

	*size = sizeof(GBT_VARKEY);

	cur = (GBT_VARKEY *) DatumGetPointer(entryvec->vector[0].key);
	rk = gbt_var_key_readable(cur);
	out = PointerGetDatum(gbt_var_key_copy(&rk, TRUE));

	for (i = 1; i < numranges; i++)
	{
		cur = (GBT_VARKEY *) DatumGetPointer(entryvec->vector[i].key);
		gbt_var_bin_union(&out, cur, collation, tinfo);
	}


	/* Truncate (=compress) key */
	if (tinfo->trnc)
	{
		int32		plen;
		GBT_VARKEY *trc = NULL;

		plen = gbt_var_node_cp_len((GBT_VARKEY *) DatumGetPointer(out), tinfo);
		trc = gbt_var_node_truncate((GBT_VARKEY *) DatumGetPointer(out), plen + 1, tinfo);

		out = PointerGetDatum(trc);
	}

	return ((GBT_VARKEY *) DatumGetPointer(out));
}

Example #6

File: btree_numeric.c Project: Joe-xXx/postgres-old-soon-decommissioned

Datum
gbt_numeric_penalty(PG_FUNCTION_ARGS)
{
	GISTENTRY  *o = (GISTENTRY *) PG_GETARG_POINTER(0);
	GISTENTRY  *n = (GISTENTRY *) PG_GETARG_POINTER(1);
	float	   *result = (float *) PG_GETARG_POINTER(2);

	Numeric		us,
				os,
				ds;

	GBT_VARKEY *org = (GBT_VARKEY *) DatumGetPointer(o->key);
	GBT_VARKEY *newe = (GBT_VARKEY *) DatumGetPointer(n->key);
	Datum		uni;
	GBT_VARKEY_R rk,
				ok,
				uk;

	rk = gbt_var_key_readable(org);
	uni = PointerGetDatum(gbt_var_key_copy(&rk, TRUE));
	gbt_var_bin_union(&uni, newe, &tinfo);
	ok = gbt_var_key_readable(org);
	uk = gbt_var_key_readable((GBT_VARKEY *) DatumGetPointer(uni));

	us = DatumGetNumeric(DirectFunctionCall2(
											 numeric_sub,
											 PointerGetDatum(uk.upper),
											 PointerGetDatum(uk.lower)
											 ));

	os = DatumGetNumeric(DirectFunctionCall2(
											 numeric_sub,
											 PointerGetDatum(ok.upper),
											 PointerGetDatum(ok.lower)
											 ));

	ds = DatumGetNumeric(DirectFunctionCall2(
											 numeric_sub,
											 NumericGetDatum(us),
											 NumericGetDatum(os)
											 ));

	if (numeric_is_nan(us))
	{
		if (numeric_is_nan(os))
			*result = 0.0;
		else
			*result = 1.0;
	}
	else
	{
		Numeric		nul = DatumGetNumeric(DirectFunctionCall1(int4_numeric, Int32GetDatum(0)));

		*result = 0.0;

		if (DirectFunctionCall2(numeric_gt, NumericGetDatum(ds), NumericGetDatum(nul)))
		{
			*result += FLT_MIN;
			os = DatumGetNumeric(DirectFunctionCall2(
													 numeric_div,
													 NumericGetDatum(ds),
													 NumericGetDatum(us)
													 ));
			*result += (float4) DatumGetFloat8(DirectFunctionCall1(numeric_float8_no_overflow, NumericGetDatum(os)));
		}
	}

	if (*result > 0)
		*result *= (FLT_MAX / (((GISTENTRY *) PG_GETARG_POINTER(0))->rel->rd_att->natts + 1));

	PG_RETURN_POINTER(result);
}