lance-format / lance-format/lance
Add mode/config to disallow querying without indexes
Open
Nobody has claimed this yet.
enhancement
- Dominant language
- Rust
- Stars
- 7.1k
- Forks
- 852
- Avg merge
- 3d 18h
- Merged PRs (30d)
- 272
Description
When dealing with large datasets, missing index reads can be extremely expensive and cause significant performance degradation at scale.
Stretch would be to introduce throttling based on index selectivity (throttle/fail query if selectivity is < x% at a fragment level to start).
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
The issue names no files, tests, or entry points. Start by locating the query and index-selection implementation, then determine how a mode or configuration can reject queries without indexes; the stretch goal would require defining fragment-level selectivity thresholds and throttling behavior.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- rust
- Domain
- databases
- Issue type
- Feature
- Difficulty
- 5/5
- Estimated time
- Over a week
- Activity status
- Stale
- Clarity
- Needs clarification
- Newbie friendliness
- 25/100