Datum
gbt_intv_penalty(PG_FUNCTION_ARGS)
{
intvKEY *origentry = (intvKEY *) DatumGetPointer(((GISTENTRY *) PG_GETARG_POINTER(0))->key);
intvKEY *newentry = (intvKEY *) DatumGetPointer(((GISTENTRY *) PG_GETARG_POINTER(1))->key);
float *result = (float *) PG_GETARG_POINTER(2);
double iorg[2],
inew[2];
iorg[0] = intr2num(&origentry->lower);
iorg[1] = intr2num(&origentry->upper);
inew[0] = intr2num(&newentry->lower);
inew[1] = intr2num(&newentry->upper);
penalty_num(result, iorg[0], iorg[1], inew[0], inew[1]);
PG_RETURN_POINTER(result);
}
static float8
gbt_intv_dist(const void *a, const void *b)
{
return (float8) Abs(intr2num((Interval *) a) - intr2num((Interval *) b));
}
