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Include suggestion about feature identifiers #121

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Nov 7, 2022
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Include suggestion about feature identifiers #121

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6 changes: 6 additions & 0 deletions format-specs/geoparquet.md
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Expand Up @@ -166,6 +166,12 @@ This follows the GeoJSON specification ([RFC 7946, section 5](https://tools.ietf

### Additional information

#### Feature identifiers

If you are using GeoParquet to serialize geospatial data with feature identifiers, it is recommended that you create your own [file key/value metadata](https://github.com/apache/parquet-format#metadata) to indicate the column that represents this identifier. As an example, GDAL writes additional metadata using the `gdal:schema` key including information about feature identifiers and other information outside the scope of the GeoParquet specification.

#### Example data

You can find an example in the [examples](../examples/) folder.

[parquet]: https://parquet.apache.org/
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