/*
** GiST support function. Called from gserialized_gist_consistent below.
*/
static inline bool gserialized_gist_consistent_leaf_2d(BOX2DF *key, BOX2DF *query, StrategyNumber strategy)
{
bool retval;
POSTGIS_DEBUGF(4, "[GIST] leaf consistent, strategy [%d], count[%i]",
strategy, g2d_counter_leaf++);
switch (strategy)
{
case RTOverlapStrategyNumber:
retval = (bool) box2df_overlaps(key, query);
break;
case RTSameStrategyNumber:
retval = (bool) box2df_equals(key, query);
break;
case RTContainsStrategyNumber:
case RTOldContainsStrategyNumber:
retval = (bool) box2df_contains(key, query);
break;
case RTContainedByStrategyNumber:
case RTOldContainedByStrategyNumber:
retval = (bool) box2df_contains(query, key);
break;
default:
retval = FALSE;
}
return (retval);
}
Datum
spgist_geom_leaf_consistent(PG_FUNCTION_ARGS)
{
spgLeafConsistentIn *in = (spgLeafConsistentIn *) PG_GETARG_POINTER(0);
spgLeafConsistentOut *out = (spgLeafConsistentOut *) PG_GETARG_POINTER(1);
bool res;
int i;
BOX2DF datum;
BOX2DF *datum_p = &datum;
gserialized_datum_get_box2df_p(in->leafDatum, datum_p);
/* all tests are exact */
out->recheck = false;
/* leafDatum is what it is... */
out->leafValue = in->leafDatum;
/* Perform the required comparison(s) */
res = true;
for (i = 0; i < in->nkeys; i++)
{
BOX2DF query;
BOX2DF *query_p = &query;
gserialized_datum_get_box2df_p(in->scankeys[i].sk_argument, query_p);
switch (in->scankeys[i].sk_strategy)
{
case RTLeftStrategyNumber:
res = (bool) box2df_left(datum_p, query_p);
break;
case RTRightStrategyNumber:
res = (bool) box2df_right(datum_p, query_p);
break;
case RTSameStrategyNumber:
res = (bool) box2df_equals(datum_p, query_p);
break;
case RTBelowStrategyNumber:
res = (bool) box2df_below(datum_p, query_p);
break;
case RTAboveStrategyNumber:
res = (bool) box2df_above(datum_p, query_p);
break;
case RTContainedByStrategyNumber:
res = (bool) box2df_contains(query_p, datum_p);
break;
default:
elog(ERROR, "unrecognized strategy number: %d",
in->scankeys[i].sk_strategy);
break;
}
if (!res)
break;
}
PG_RETURN_BOOL(res);
}
static inline bool gserialized_gist_consistent_leaf_2d(BOX2DF *key, BOX2DF *query, StrategyNumber strategy)
{
bool retval;
switch (strategy)
{
/* Basic overlaps */
case RTOverlapStrategyNumber:
retval = (bool) box2df_overlaps(key, query);
break;
case RTSameStrategyNumber:
retval = (bool) box2df_equals(key, query);
break;
case RTContainsStrategyNumber:
case RTOldContainsStrategyNumber:
retval = (bool) box2df_contains(key, query);
break;
case RTContainedByStrategyNumber:
case RTOldContainedByStrategyNumber:
retval = (bool) box2df_contains(query, key);
break;
/* To one side */
case RTAboveStrategyNumber:
retval = (bool) box2df_above(key, query);
break;
case RTBelowStrategyNumber:
retval = (bool) box2df_below(key, query);
break;
case RTRightStrategyNumber:
retval = (bool) box2df_right(key, query);
break;
case RTLeftStrategyNumber:
retval = (bool) box2df_left(key, query);
break;
/* Overlapping to one side */
case RTOverAboveStrategyNumber:
retval = (bool) box2df_overabove(key, query);
break;
case RTOverBelowStrategyNumber:
retval = (bool) box2df_overbelow(key, query);
break;
case RTOverRightStrategyNumber:
retval = (bool) box2df_overright(key, query);
break;
case RTOverLeftStrategyNumber:
retval = (bool) box2df_overleft(key, query);
break;
default:
retval = FALSE;
}
return (retval);
}
Datum gserialized_gist_same_2d(PG_FUNCTION_ARGS)
{
BOX2DF *b1 = (BOX2DF*)PG_GETARG_POINTER(0);
BOX2DF *b2 = (BOX2DF*)PG_GETARG_POINTER(1);
bool *result = (bool*)PG_GETARG_POINTER(2);
POSTGIS_DEBUG(4, "[GIST] 'same' function called");
*result = box2df_equals(b1, b2);
PG_RETURN_POINTER(result);
}
