Name
~ — Returns TRUE if A's bounding box contains B's.
Synopsis
boolean ~( geometry A , geometry B );
Description
The ~ operator returns TRUE if the bounding box of geometry A completely contains the bounding box of geometry B.
![[Note]](https://postgis.net/../images/note.png) | |
| This operand will make use of any indexes that may be available on the geometries. |
Examples
SELECT tbl1.column1, tbl2.column1, tbl1.column2 ~ tbl2.column2 AS contains FROM ( VALUES (1, 'LINESTRING (0 0, 3 3)'::geometry)) AS tbl1, ( VALUES (2, 'LINESTRING (0 0, 4 4)'::geometry), (3, 'LINESTRING (1 1, 2 2)'::geometry), (4, 'LINESTRING (0 0, 3 3)'::geometry)) AS tbl2; column1 | column1 | contains ---------+---------+---------- 1 | 2 | f 1 | 3 | t 1 | 4 | t (3 rows)