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\$1Reverse
<a name="ST_Reverse-function"></a>

ST\$1Reverse reverses the order of the vertices for linear and areal geometries. For point or multipoint geometries, a copy of the original geometry is returned. For geometry collections, ST\$1Reverse reverses the order of the vertices for each of the geometries in the collection.

The dimension of the returned geometry is the same as that of the input geometry.

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

```
ST_Reverse(geom)
```

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

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

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

`GEOMETRY` 

The spatial reference system identifier (SRID) of the returned geometry is the same as that of the input geometry. 

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

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

The following SQL reverses the order of the points in a linestring. 

```
SELECT ST_AsEWKT(ST_Reverse(ST_GeomFromText('LINESTRING(1 0,2 0,3 0,4 0)', 4326)));
```

```
    st_asewkt
------------------------------------
  SRID=4326;LINESTRING(4 0,3 0,2 0,1 0)
```