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dataframe-parquet: Parquet reader and writer for the dataframe ecosystem.

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DataFrame.IO.Parquet — pure-Haskell Parquet 2.0 reader and writer (with snappy, zstd, gzip codecs, dictionary decoding, nested list/repeated columns, and predicate pushdown). Heavy package — pulls in pinch, streamly, and compression codecs. Reading directly from HuggingFace (hf://) datasets lives in the separate dataframe-huggingface package. Most users want dataframe-csv instead unless they specifically need Parquet.

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Versions [RSS] 1.0.0.0, 1.0.1.0, 1.0.1.1, 1.0.1.2, 1.1.0.0, 1.1.0.1
Dependencies base (>=4 && <5), bytestring (>=0.11 && <0.13), containers (>=0.6.7 && <0.9), dataframe-core (>=1.1 && <1.2), dataframe-operations (>=1.1.1 && <1.2), dataframe-parsing (>=1.0.2 && <1.1), directory (>=1.3.0.0 && <2), filepath (>=1.4 && <2), Glob (>=0.10 && <1), pinch (>=0.5 && <1), snappy-hs (>=0.1 && <0.2), streamly-bytestring (>=0.2.0 && <0.4), streamly-core (>=0.2.3 && <0.4), text (>=2.1 && <3), time (>=1.12 && <2), vector (>=0.13 && <0.14), zlib (>=0.5 && <1), zstd (>=0.1.2.0 && <0.2) [details]
Tested with ghc ==9.4.8 || ==9.6.7 || ==9.8.4 || ==9.10.3 || ==9.12.2
License MIT
Copyright (c) 2024-2026 Michael Chavinda
Author Michael Chavinda
Maintainer mschavinda@gmail.com
Uploaded by mchav at 2026-06-21T04:48:31Z
Category Data
Bug tracker https://github.com/mchav/dataframe/issues
Distributions Stackage:1.0.1.1
Reverse Dependencies 4 direct, 6 indirect [details]
Downloads 21 total (17 in the last 30 days)
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Status Docs available [build log]
Last success reported on 2026-06-21 [all 1 reports]