W3cubDocs

/MariaDB

ST_CONTAINS

Syntax

ST_CONTAINS(g1,g2)

Description

Returns 1 or 0 to indicate whether a geometry g1 completely contains geometry g2.

ST_CONTAINS() uses object shapes, while CONTAINS(), based on the original MySQL implementation, uses object bounding rectangles.

ST_CONTAINS tests the opposite relationship to ST_WITHIN().

Examples

SET @g1 = ST_GEOMFROMTEXT('POLYGON((175 150, 20 40, 50 60, 125 100, 175 150))');

SET @g2 = ST_GEOMFROMTEXT('POINT(174 149)');

SELECT ST_CONTAINS(@g1,@g2);
+----------------------+
| ST_CONTAINS(@g1,@g2) |
+----------------------+
|                    1 |
+----------------------+

SET @g2 = ST_GEOMFROMTEXT('POINT(175 151)');

SELECT ST_CONTAINS(@g1,@g2);
+----------------------+
| ST_CONTAINS(@g1,@g2) |
+----------------------+
|                    0 |
+----------------------+
Content reproduced on this site is the property of its respective owners, and this content is not reviewed in advance by MariaDB. The views, information and opinions expressed by this content do not necessarily represent those of MariaDB or any other party.

© 2019 MariaDB
Licensed under the Creative Commons Attribution 3.0 Unported License and the GNU Free Documentation License.
https://mariadb.com/kb/en/st_contains/