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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
      • Internal
        • DataFrame.Lazy.Internal.DataFrame
        • DataFrame.Lazy.Internal.Executor
        • DataFrame.Lazy.Internal.LogicalPlan
        • DataFrame.Lazy.Internal.Optimizer
        • DataFrame.Lazy.Internal.PhysicalPlan
    • Typed
      • DataFrame.Typed.Lazy

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Versions [RSS] 1.0.0.0, 1.0.1.0, 1.0.1.1
Dependencies async (>=2.2 && <3), attoparsec (>=0.12 && <0.15), base (>=4 && <5), bytestring (>=0.11 && <0.13), containers (>=0.6.7 && <0.9), dataframe-core (>=1.0 && <1.1), dataframe-csv (>=1.0 && <1.1), dataframe-operations (>=1.1 && <1.2), dataframe-parquet (>=1.0 && <1.1), dataframe-parsing (>=1.0 && <1.1), directory (>=1.3.0.0 && <2), filepath (>=1.4 && <2), Glob (>=0.10 && <1), stm (>=2.5 && <3), temporary (>=1.3 && <2), text (>=2.0 && <3), vector (>=0.13 && <0.14) [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 2026-06-06T09:51:18Z
Category Data
Bug tracker https://github.com/mchav/dataframe/issues
Distributions Stackage:1.0.1.1
Reverse Dependencies 1 direct, 6 indirect [details]
Downloads 13 total (13 in the last 30 days)
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Status Docs not available [build log]
All reported builds failed as of 2026-06-06 [all 2 reports]