Name
|&> — Returns TRUE if A's bounding box overlaps or is above B's.
Synopsis
boolean |&>(
geometry
A
,
geometry
B
);
Description
The |&> operator returns TRUE if the bounding box of geometry A
overlaps or is above the bounding box of geometry B, or more accurately, overlaps or is NOT below
the bounding box of geometry B.
![[Note]](../images/note.png)
|
|
|
This operand will make use of any indexes that may be available on the geometries. |
Examples
Code
SELECT tbl1.column1, tbl2.column1, tbl1.column2 |&> tbl2.column2 AS overabove
FROM
( VALUES
(1, 'LINESTRING(6 0,6 4)'::geometry)) AS tbl1,
( VALUES
(2, 'LINESTRING(0 0,3 3)'::geometry),
(3, 'LINESTRING(0 1,0 5)'::geometry),
(4, 'LINESTRING(1 2,4 6)'::geometry)) AS tbl2;
Output
column1 | column1 | overabove
---------+---------+-----------
1 | 2 | t
1 | 3 | f
1 | 4 | f
(3 rows)
Figure