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]](../images/note.png)
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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 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;
Output
column1 | column1 | contains
---------+---------+----------
1 | 2 | f
1 | 3 | t
1 | 4 | t
(3 rows)
Figure