dataframe-lazy

Lazy query engine for the dataframe ecosystem.

Stackage Nightly 2026-05-15:	1.0.1.0
Latest on Hackage:	1.0.1.0

See all snapshots dataframe-lazy appears in

MIT licensed by Michael Chavinda

Maintained by [email protected]

This version can be pinned in stack with:dataframe-lazy-1.0.1.0@sha256:d6cc58582cf70680330a38a4debbdd1bf6184f2b8f0daa6799f1555ef6a8250a,2399

Module documentation for 1.0.1.0

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

Depends on 17 packages(full list with versions):

async, attoparsec, base, bytestring, containers, dataframe-core, dataframe-csv, dataframe-operations, dataframe-parquet, dataframe-parsing, directory, filepath, Glob, stm, temporary, text, vector

Used by 1 package in nightly-2026-05-15(full list with versions):

dataframe

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.