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datafusion-contrib / datafusion-orc

Implementation of Apache ORC file format use Apache Arrow in-memory format
Apache License 2.0
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Introduce ProjectionMask #51

Closed Jefffrey closed 6 months ago

Jefffrey commented 6 months ago

Closes #19

Encapsulate projection logic in new ProjectionMask struct, akin to how parquet does it

Hopefully can provide structure for future work for projecting nesting fields, see #52