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\$1Points
<a name="ST_Points-function"></a>

ST\$1Points returns a multipoint geometry containing all nonempty points in the input geometry. ST\$1Points doesn't remove points that are duplicated in the input, including the start and end points of ring geometries.

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

```
ST_Points(geom)
```

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

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

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

`GEOMETRY` of subtype `MULTIPOINT`. 

The spatial reference system identifier (SRID) value of the returned geometry is the same as *geom*. 

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

If *geom* is empty, then the empty multipoint is returned. 

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

The following SQL examples construct a multipoint geometry from the input geometry. The result is a multipoint geometry containing the nonempty points in the input geometry.

```
SELECT ST_AsEWKT(ST_Points(ST_SetSRID(ST_GeomFromText('LINESTRING(1 0,2 0,3 0)'), 4326)));
```

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

```
SELECT ST_AsEWKT(ST_Points(ST_SetSRID(ST_GeomFromText('MULTIPOLYGON(((0 0,1 0,0 1,0 0)))'), 4326)));
```

```
st_asewkt
-------------
SRID=4326;MULTIPOINT((0 0),(1 0),(0 1),(0 0))
```