lance-format / lance-format/lance
non-indexed merge_insert is loading too many columns
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priority: high
- Dominant language
- Rust
- Stars
- 7.1k
- Forks
- 852
- Avg merge
- 3d 18h
- Merged PRs (30d)
- 272
Description
This is similar to #3480. We should only be loading the key columns and/or filter columns from the target table.
TODO
Contributor guide
First steps
- Read the whole issue, then the project's contributing guide.
- Comment on the issue to say you are picking it up — it saves two people doing the same work.
- Fork the repository and make your change on a branch.
- Open a pull request that references the issue number.
Research direction
Start by comparing this issue with #3480 and locating the non-indexed merge_insert implementation. The change is complete when target-table reads load only the key and/or filter columns; no specific file or test is named in the issue.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- rust
- Domain
- databases, performance
- Issue type
- Refactor
- Difficulty
- 4/5
- Estimated time
- 3-5 days
- Activity status
- Stale
- Clarity
- Needs clarification
- Newbie friendliness
- 35/100