Initial Implementation of the Parquet Writer - #215

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sharmrj wants to merge 30 commits into

DataHaskell:mainfrom

sharmrj:parquet-writer

Commits on Aug 5, 2026

WIP: Initial sketch of the parquet writer design
sharmrj
committed
85c6e4a

Commits on Aug 18, 2026

WIP Parquet Writer (does not compile)
sharmrj
committed
89d7b6d

Commits on Aug 19, 2026

Implemented HasBuffer instance for the file backed buffer; Cleaned up imports and exports
sharmrj
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e8c2b85
Tests for `HasBuffer` instances
sharmrj
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c3fc6c3
Changes to make Writer.hs compile so we can run tests
sharmrj
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f292f51
fix conflicts with main
sharmrj
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00f105b
Fixed ensureCapacity so that it works correctly with pinned ByteArrays and added some helper functions.
sharmrj
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167ab08
implement a cleaned up Parquet Writer
sharmrj
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6fd2e80
added some comments
sharmrj
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f76f518
added benchmarks and a stress test
sharmrj
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ad47e3b
Optimized hotspots
sharmrj
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237a139
ran fourmolu
sharmrj
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995fc7b
hlint
sharmrj
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74ff879
fourmolu again
sharmrj
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ddab22c
parquet.thrift was committed by accident
sharmrj
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bb46712
made sure test parquet files can be recognized in CI.
sharmrj
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db19108
Changed dataframe-parquet.cabal after the recommendations from CI's cabal check
sharmrj
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31b054a

Commits on Aug 20, 2026

Commits on Aug 21, 2026

Commits on Aug 23, 2026

Writer Refactor WIP
sharmrj
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c486e02
removed dead code (refactor WIP)
sharmrj
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bf8f486
Refactored the Parquet Writer for readability
sharmrj
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c38f2fa
Merge remote-tracking branch 'refs/remotes/upstream/main' into parquet-writer
sharmrj
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af73988
Fixed a compile issue after pulling from main
sharmrj
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09e0ce0
Reverted changes to the stress test
sharmrj
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bddd38e
Fixed a `Bitmap` import
sharmrj
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80dd2f3

Commits on Aug 24, 2026

`writeByteStringToFile` no longer instantiates a new buffer.
sharmrj
committed
4d37dc0