collate: An Applicative Functor for extracting parts of a stream of values

[ algorithms, apache, library ] [ Propose Tags ]

This provides a way to build up a computation that accesses many different indices (possibly out-of-order) of a large stream of values, and run it in a single scan over the stream. In essence, this implements a hash-join.

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Dependencies base (>=4.12 && <4.17), containers (>=0.1 && <0.7), lens (>=3.0 && <5.1), primitive (>=0.6 && <0.8), transformers (>=0.2 && <0.6), vector (>=0.5 && <0.13) [details]
License Apache-2.0
Copyright 2018-2021 Google LLC
Author Andrew Pritchard <>
Maintainer Andrew Pritchard <>
Revised Revision 1 made by AndrewPritchard at 2021-11-03T07:29:23Z
Category Algorithms
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Source repo head: git clone
Uploaded by AndrewPritchard at 2021-09-09T04:18:44Z
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Downloads 55 total (5 in the last 30 days)
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Status Hackage Matrix CI
Docs available [build log]
Last success reported on 2021-09-09 [all 1 reports]


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