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.

DropBBox

DropBBox returns a copy of the input geometry that doesn't support encoding with a precomputed bounding box. For more information about support for bounding boxes, see Bounding box.

Syntax

DropBBox(geom)

Arguments

Return type

GEOMETRY

If geom is null, then null is returned.

Examples

The following SQL returns a copy of an input polygon geometry that doesn't support being encoded with a bounding box.

SELECT ST_AsText(DropBBox(ST_GeomFromText('POLYGON((0 0,1 0,0 1,0 0))')));

 st_astext
----------
 POLYGON((0 0,1 0,0 1,0 0))