dataframe-lazy: Lazy query engine for the dataframe ecosystem.

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The lazy/streaming query engine: relational-algebra plans, optimizer, pull-based executor, and column-oriented spill format. Includes the typed lazy wrapper. Currently depends on dataframe-csv and dataframe-parquet since the executor calls those readers directly.

Modules

[Last Documentation]

DataFrame
- DataFrame.Lazy
  - IO
    - DataFrame.Lazy.IO.Binary
    - DataFrame.Lazy.IO.CSV
- Typed
  - DataFrame.Typed.Lazy

Downloads

dataframe-lazy-2.0.0.0.tar.gz [browse] (Cabal source package)
Package description (as included in the package)

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Package maintainers

mchav

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Versions [RSS]	1.0.0.0, 1.0.1.0, 1.0.1.1, 1.0.2.0, 1.1.0.0, 1.1.0.2, 2.0.0.0
Dependencies	async (>=2.2 && <3), attoparsec (>=0.12 && <0.16), base (>=4 && <5), bytestring (>=0.11 && <0.14), containers (>=0.6.7 && <0.10), dataframe-core (>=2.0 && <2.1), dataframe-csv (>=2.0 && <2.1), dataframe-operations (>=2.0 && <2.1), dataframe-parquet (>=1.2 && <1.3), dataframe-parsing (>=2.0 && <2.1), directory (>=1.3.0.0 && <2), filepath (>=1.4 && <2), Glob (>=0.10 && <1), stm (>=2.5 && <3), temporary (>=1.3 && <2), text (>=2.1 && <3), vector (>=0.13 && <0.15) [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 2026-07-13T23:02:38Z
Category	Data
Bug tracker	https://github.com/mchav/dataframe/issues
Distributions	Stackage:2.0.0.0
Reverse Dependencies	2 direct, 6 indirect [details]
Downloads	49 total (28 in the last 30 days)
Rating	(no votes yet) [estimated by Bayesian average]
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Status	Docs not available [build log] All reported builds failed as of 2026-07-14 [all 2 reports]