Gunnar Morling 5/31/2026

Improved Column Reader API, First Cut of Geospatial Support: Hardwood 1.0.0.CR1 Is Available

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This article announces the release of Hardwood 1.0.0.CR1, a candidate release for a library providing columnar access to Apache Parquet files. Key updates include a reworked ColumnReader API inspired by Apache Arrow for better handling of optional and repeatable columns, initial support for Parquet's GEOMETRY/GEOGRAPHY column types for geospatial data, and a documentation overhaul. The article includes code examples demonstrating batch-style column reading and nullability handling, targeting developers working with analytical workloads and big data formats.

Improved Column Reader API, First Cut of Geospatial Support: Hardwood 1.0.0.CR1 Is Available

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