lance-format / lance-format/lance-graph
LDBC benchmark: insignificant performance gain from enabling Lance dataset indexes for LanceGraph
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- Dominant language
- Rust
- Stars
- 179
- Forks
- 33
- PR merge metrics
- No merged PRs in 30d
Description
While executing the [graph-benchmark-ldbc](https://github.com/prrao87/graph-benchmark-ldbc/tree/main) benchmark, I noticed that enabling Lance dataset indexes yields almost no visible performance improvement compared to running without these indexes.
This leads me to a question: are the native Lance dataset indexes not very useful for Lance‑Graph query workloads?
Contributor guide
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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 running the linked graph-benchmark-ldbc benchmark with Lance dataset indexes enabled and disabled, recording the query-performance difference. Review the benchmark results and LanceGraph query workload to determine whether the indexes are being used; done means explaining the insignificant gain or identifying a concrete indexing problem.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- rust
- Domain
- databases, performance
- Issue type
- Bug
- Difficulty
- 4/5
- Estimated time
- 3-5 days
- Activity status
- Active
- Clarity
- Needs clarification
- Newbie friendliness
- 35/100