From 4f1da7e07063259b7296bacfbbae544edc78fda8 Mon Sep 17 00:00:00 2001 From: Tim Schaub Date: Mon, 24 Oct 2022 11:42:52 -0600 Subject: [PATCH] Include suggestion about feature identifiers --- format-specs/geoparquet.md | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/format-specs/geoparquet.md b/format-specs/geoparquet.md index a2c2f37..c23ed9a 100644 --- a/format-specs/geoparquet.md +++ b/format-specs/geoparquet.md @@ -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/