ST_AsBinary - Amazon Redshift
SyntaxArgumentsReturn typeExamples

Amazon Redshift will no longer support the creation of new Python UDFs starting Patch 198. Existing Python UDFs will continue to function until June 30, 2026. For more information, see the blog post .

ST_AsBinary

ST_AsBinary returns the hexadecimal well-known binary (WKB) representation of an input geometry. For 3DZ, 3DM, and 4D geometries, ST_AsBinary uses the Open Geospatial Consortium (OGC) standard value for the geometry type.

Syntax

ST_AsBinary(geom)

Arguments

geom

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

Return type

VARBYTE

If geom is null, then null is returned.

Examples

The following SQL returns the hexadecimal WKB representation of a polygon. 

SELECT ST_AsBinary(ST_GeomFromText('POLYGON((0 0,0 1,1 1,1 0,0 0))',4326));

st_asbinary
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01030000000100000005000000000000000000000000000000000000000000000000000000000000000000F03F000000000000F03F000000000000F03F000000000000F03F000000000000000000000000000000000000000000000000