lance-format / lance-format/lance

Add compaction criterion for dropped columns

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

Description

We should add a criterion in compaction for number of columns that are no longer in use.

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

The issue names only compaction; locate the compaction entry point and inspect how existing criteria are represented and evaluated. Clarify how dropped columns should be counted, what threshold or behavior is expected, and which tests should demonstrate that the new criterion works.

Written by the indexing model from the issue text.

Assessment

Tech stack
rust
Domain
databases
Issue type
Feature
Difficulty
4/5
Estimated time
3-5 days
Activity status
Stale
Clarity
Needs clarification
Newbie friendliness
35/100

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