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 ](https://aws.amazon.com/blogs/big-data/amazon-redshift-python-user-defined-functions-will-reach-end-of-support-after-june-30-2026/). 

# ST\$1SetSRID
<a name="ST_SetSRID-function"></a>

ST\$1SetSRID returns a geometry that is the same as input geometry, except updated with the value input for the spatial reference system identifier (SRID). 

## Syntax
<a name="ST_SetSRID-function-syntax"></a>

```
ST_SetSRID(geom, srid)
```

## Arguments
<a name="ST_SetSRID-function-arguments"></a>

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

 *srid*   
A value of data type `INTEGER` that represents a SRID. 

## Return type
<a name="ST_SetSRID-function-return"></a>

`GEOMETRY`

The SRID value of the returned geometry is set to *srid*. 

If *geom* or *srid* is null, then null is returned.

If *srid* is negative, then an error is returned.

## Examples
<a name="ST_SetSRID-function-examples"></a>

The following SQL sets the SRID value of a linestring.

```
SELECT ST_AsEWKT(ST_SetSRID(ST_GeomFromText('LINESTRING(77.29 29.07,77.42 29.26,77.27 29.31,77.29 29.07)'),50));
```

```
st_asewkt
-------------
 SRID=50;LINESTRING(77.29 29.07,77.42 29.26,77.27 29.31,77.29 29.07)
```