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stac-utils / stac-geoparquet

Convert STAC items between JSON, GeoParquet, pgstac, and Delta Lake.
https://stac-utils.github.io/stac-geoparquet/
MIT License
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Support for GeoParquet 1.1 metadata #38

Closed kylebarron closed 6 months ago

kylebarron commented 6 months ago

The upcoming GeoParquet 1.1 spec has support for bounding box columns (https://github.com/opengeospatial/geoparquet/pull/191). This enables readers to take advantage of any spatial partitioning present in the dataset (by looking at the Parquet statistics for each bounding box column) while maintaining interoperability because the geometries are still stored as WKB, which many tools are able to read and write.

GeoPandas hasn't yet added support for this, and we may need a special case here because we already have the bbox columns. But we should include the GeoParquet metadata on this to ensure that those bbox columns are found.

Does this mean that we should implement our own wrapper for writing GeoParquet here, so that we can manually specify metadata?

kylebarron commented 6 months ago

The write side is closed by https://github.com/stac-utils/stac-geoparquet/pull/40. At the moment, we don't require our own read-side spatial filtering inside stac-geoparquet, so I don't think we need a special reader.