Amazon Redshift will no longer support the use of Python UDFs after June 30, 2026. We will start enforcing it in phases. For more information on the details of Python end of life and migration options, see the blog post that was published on June 30, 2025.

ST_IsEmpty

ST_IsEmpty returns true if the input geometry is empty. A geometry is not empty if it contains at least one nonempty point.

ST_IsEmpty returns true if the input geometry has at least one nonempty point.

Syntax

ST_IsEmpty(geom)

Arguments

Return type

BOOLEAN

If geom is null, then null is returned.

Examples

The following SQL checks if the specified polygon is empty.

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

st_isempty
-----------
 false