ST_IsCollection - Amazon Redshift
SyntaxArgumentsReturn typeExamples
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ST_IsCollection

ST_IsCollection returns true if the input geometry is one of the following subtypes: GEOMETRYCOLLECTION, MULTIPOINT, MULTILINESTRING, or MULTIPOLYGON.

Syntax

ST_IsCollection(geom)

Arguments

geom

A value of data type GEOMETRY or an expression that evaluates to a GEOMETRY type.

Return type

BOOLEAN

If geom is null, then null is returned.

Examples

The following SQL checks if the polygon is a collection. 

SELECT ST_IsCollection(ST_GeomFromText('POLYGON((0 2,1 1,0 -1,0 2))'));

st_iscollection
-----------
 false