View a markdown version of this page

SupportsBBox - Amazon Redshift

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.

SupportsBBox

SupportsBBox returns true if the input geometry supports encoding with a precomputed bounding box. For more information about support for bounding boxes, see Bounding box.

Syntax

SupportsBBox(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 returns true because the input point geometry supports being encoded with a bounding box.

SELECT SupportsBBox(AddBBox(ST_GeomFromText('POLYGON((0 0,1 0,0 1,0 0))')));
supportsbbox -------------- t

The following SQL returns false because the input point geometry doesn't support being encoded with a bounding box.

SELECT SupportsBBox(DropBBox(ST_GeomFromText('POLYGON((0 0,1 0,0 1,0 0))')));
supportsbbox -------------- f