ST_SRID - Amazon Redshift
SyntaxArgumentsReturn typeExamples

Amazon Redshift will no longer support the creation of new Python UDFs starting November 1, 2025. If you would like to use Python UDFs, create the UDFs prior to that date. Existing Python UDFs will continue to function as normal. For more information, see the blog post .

ST_SRID

ST_SRID returns the spatial reference system identifier (SRID) of an input geometry. For more information about an SRID, see Querying spatial data in Amazon Redshift.

Syntax

ST_SRID(geom)

Arguments

geom

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

Return type

INTEGER representing the SRID value of geom.

If geom is null, then null is returned.

Examples

The following SQL returns an SRID value of a linestring that is set to SRID 4326.

SELECT ST_SRID(ST_GeomFromText('LINESTRING(77.29 29.07,77.42 29.26,77.27 29.31,77.29 29.07)',4326));

st_srid
-------------
 4326

The following SQL returns an SRID value of a linestring that is not set when constructed. This results in 0 for the SRID value.

SELECT ST_SRID(ST_GeomFromText('LINESTRING(77.29 29.07,77.42 29.26,77.27 29.31,77.29 29.07)'));

st_srid
-------------
 0