ST_NUMGEOMETRIES()

Overview

Returns the number of geometries in the GeometryCollection.

See also: Functions in 10.6 ES, in 10.6 CS, in 10.5 ES, in 10.5 CS, in 10.4 ES, in 10.4 CS, in 10.3 ES, in 10.3 CS, in 10.2 ES, and in 10.2 CS

EXAMPLES

SET @gc = 'GeometryCollection(Point(1 0),Point(0 1),Point(1 1))';
SELECT ST_NumGeometries(ST_GeomFromText(@gc));

+----------------------------------------+
| ST_NumGeometries(ST_GeomFromText(@gc)) |
+----------------------------------------+
|                                      3 |
+----------------------------------------+

SET @gc = CONCAT('GeometryCollection(Point(1 0),LineString(1 2, 2 3),',
            'MultiLineString((1 1,2 2,3 3),(4 4,5 5),(1 1,2 2,3 3)))');
SELECT ST_NumGeometries(ST_GeomFromText(@gc));

+----------------------------------------+
| ST_NumGeometries(ST_GeomFromText(@gc)) |
+----------------------------------------+
|                                      3 |
+----------------------------------------+

CHANGE HISTORY

Release Series

History

10.6 Enterprise

  • Present starting in MariaDB Enterprise Server 10.6.4-1.

10.6 Community

  • Present starting in MariaDB Community Server 10.6.0.

10.5 Enterprise

  • Present starting in MariaDB Enterprise Server 10.5.3-1.

10.5 Community

  • Present starting in MariaDB Community Server 10.5.0.

10.4 Enterprise

  • Present starting in MariaDB Enterprise Server 10.4.6-1.

10.4 Community

  • Present starting in MariaDB Community Server 10.4.0.

10.3 Enterprise

  • Present starting in MariaDB Enterprise Server 10.3.16-1.

10.3 Community

  • Present starting in MariaDB Community Server 10.3.0.

10.2 Enterprise

  • Present starting in MariaDB Enterprise Server 10.2.25-1.

10.2 Community

  • Present starting in MariaDB Community Server 10.2.0.

EXTERNAL REFERENCES