diff options
Diffstat (limited to 'src/backend/utils/adt/geo_ops.c')
| -rw-r--r-- | src/backend/utils/adt/geo_ops.c | 39 |
1 files changed, 39 insertions, 0 deletions
diff --git a/src/backend/utils/adt/geo_ops.c b/src/backend/utils/adt/geo_ops.c index 6cb6be5c5fd..39a78552410 100644 --- a/src/backend/utils/adt/geo_ops.c +++ b/src/backend/utils/adt/geo_ops.c @@ -4227,6 +4227,45 @@ box_div(PG_FUNCTION_ARGS) PG_RETURN_BOX_P(result); } +/* + * Convert point to empty box + */ +Datum +point_box(PG_FUNCTION_ARGS) +{ + Point *pt = PG_GETARG_POINT_P(0); + BOX *box; + + box = (BOX *) palloc(sizeof(BOX)); + + box->high.x = pt->x; + box->low.x = pt->x; + box->high.y = pt->y; + box->low.y = pt->y; + + PG_RETURN_BOX_P(box); +} + +/* + * Smallest bounding box that includes both of the given boxes + */ +Datum +boxes_bound_box(PG_FUNCTION_ARGS) +{ + BOX *box1 = PG_GETARG_BOX_P(0), + *box2 = PG_GETARG_BOX_P(1), + *container; + + container = (BOX *) palloc(sizeof(BOX)); + + container->high.x = Max(box1->high.x, box2->high.x); + container->low.x = Min(box1->low.x, box2->low.x); + container->high.y = Max(box1->high.y, box2->high.y); + container->low.y = Min(box1->low.y, box2->low.y); + + PG_RETURN_BOX_P(container); +} + /*********************************************************************** ** |