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_GeogFromWKB

ST_GeogFromWKB constructs a geography object from a hexadecimal well-known binary (WKB) representation of an input geography.

Syntax

ST_GeogFromWKB(wkb_string)

Arguments

Return type

GEOGRAPHY

If the SRID value is provided it is set to the provided value. If SRID is not provided, it is set to 4326.

If wkb_string is null, then null is returned.

If wkb_string is not valid, then an error is returned.

Examples

The following SQL constructs a geography from a hexadecimal WKB value.

SELECT ST_AsEWKT(ST_GeogFromWKB('01030000000100000005000000000000000000000000000000000000000000000000000000000000000000F03F000000000000F03F000000000000F03F000000000000F03F000000000000000000000000000000000000000000000000'));

 st_asewkt
------------------------------------------
 SRID=4326;POLYGON((0 0,0 1,1 1,1 0,0 0))