lance-format / lance-format/lance

Add ALP compression

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#4,062 1 comment 0 reactions 0 assignees View on GitHub

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A-encoding enhancement
Dominant language
Rust
Stars
7.1k
Forks
852
Avg merge
3d 18h
Merged PRs (30d)
272

Description

ALP only applies to floating point data so only needs to be added for mini block compression.

Contributor guide

Open the contributing guide

First steps

  1. Read the whole issue, then the project's contributing guide.
  2. Comment on the issue to say you are picking it up — it saves two people doing the same work.
  3. Fork the repository and make your change on a branch.
  4. Open a pull request that references the issue number.

Research direction

Start by locating the existing mini block compression implementation and references to ALP in the repository. Read how floating-point compression is represented and tested, then add ALP support specifically to mini block compression and verify that the relevant compression tests cover it.

Written by the indexing model from the issue text.

Assessment

Tech stack
rust
Domain
data-engineering
Issue type
Feature
Difficulty
4/5
Estimated time
3-5 days
Activity status
Active
Clarity
Mostly clear
Newbie friendliness
52/100

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