lance-format / lance-format/lance

Raise exception if index params don't make sense

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

Description

Error
Process finished with exit code 132 (interrupted by signal 4: SIGILL)


Code
   table.create_index(num_partitions=256, num_sub_vectors=96)

num vectors is 5K

works with num_partitions=4

(reported by user on M1)

Contributor guide

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First steps

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  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 reproducing the Python call table.create_index(num_partitions=256, num_sub_vectors=96) with about 5K vectors on an M1, then compare it with num_partitions=4. Trace the index-creation entry point to find where these parameters can be checked; done means invalid combinations raise a clear exception instead of terminating with SIGILL.

Written by the indexing model from the issue text.

Assessment

Tech stack
python, rust
Domain
machine-learning, search
Issue type
Bug
Difficulty
3/5
Estimated time
1-2 days
Activity status
Stale
Clarity
Mostly clear
Newbie friendliness
35/100

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