Parquet

Parquet is a columnar file format. The catalog is an uncompressed file with a footer, not a layout-only size claim. parquet and parquet-uncompressed share that language’s Parquet reader.

Spec: Parquet file format.

Version	Catalog
File format	compliance/data/parquet/file-format.json

Pass/fail cells are on the Dashboard → Compliance view, standard Parquet.