ST_NUMGEOMETRIES()
This page is part of MariaDB's Enterprise Documentation.
The parent of this page is: Functions
Topics on this page:
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 |
|
10.6 Community |
|
10.5 Enterprise |
|
10.5 Community |
|
10.4 Enterprise |
|
10.4 Community |
|
10.3 Enterprise |
|
10.3 Community |
|
10.2 Enterprise |
|
10.2 Community |
|
EXTERNAL REFERENCES
Additional information on this topic may be found in the MariaDB Public Knowledge Base.
Information specific to MariaDB SkySQL can be found on the ST_NUMGEOMETRIES() page in the SkySQL Documentation.