Amazon Redshift will no longer support the use of Python UDFs after June 30, 2026. We will start enforcing it in phases. For more information on the details of Python end of life and migration options, 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/) that was published on June 30, 2025. 

# ST\_GeomFromGeoJSON
<a name="ST_GeomFromGeoJSON-function"></a>

ST\_GeomFromGeoJSON constructs a geometry object from the GeoJSON representation of an input geometry. For more information about the GeoJSON format, see [GeoJSON](https://en.wikipedia.org/wiki/GeoJSON) in Wikipedia. 

If there is at least one point with three or more coordinates, the resulting geometry is 3DZ, where the Z component is zero for the points that have only two coordinates. If all points in the input GeoJSON contain two coordinates or are empty, ST\_GeomFromGeoJSON returns a 2D geometry. The returned geometry always has the spatial reference identifier (SRID) of 4326.

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

```
ST_GeomFromGeoJSON(geojson_string)
```

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

 *geojson\_string*   
A value of data type `VARCHAR` or `SUPER`, or an expression that evaluates to a `VARCHAR` type, that is a GeoJSON representation of a geometry.

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

`GEOMETRY`

If *geojson\_string* is null, then null is returned. 

If *geojson\_string* is not valid, then an error is returned. 

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

The following SQL returns a 2D geometry represented in the input GeoJSON. 

```
SELECT ST_AsEWKT(ST_GeomFromGeoJSON('{"type":"Point","coordinates":[1,2]}'));
```

```
 st_asewkt       
-----------------------
 SRID=4326;POINT(1 2)
```

The following SQL returns a 3DZ geometry represented in the input GeoJSON. 

```
SELECT ST_AsEWKT(ST_GeomFromGeoJSON('{"type":"LineString","coordinates":[[1,2,3],[4,5,6],[7,8,9]]}'));
```

```
 st_asewkt  
------------------------------------------
 SRID=4326;LINESTRING Z (1 2 3,4 5 6,7 8 9)
```

The following SQL returns 3DZ geometry when only one point has three coordinates while all other points have two coordinates in the input GeoJSON. 

```
SELECT ST_AsEWKT(ST_GeomFromGeoJSON('{"type":"Polygon","coordinates":[[[0, 0],[0, 1, 8],[1, 0],[0, 0]]]}'));
```

```
 st_asewkt  
------------------------------------------------
 SRID=4326;POLYGON Z ((0 0 0,0 1 8,1 0 0,0 0 0))
```