lance-format / lance-format/lance
python: train_ivf() should accept target_partition_size instead of deprecated num_partitions
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A-python
enhancement
- Dominant language
- Rust
- Stars
- 7.1k
- Forks
- 852
- Avg merge
- 3d 18h
- Merged PRs (30d)
- 272
Description
Currently, the Python API lance.index.train_ivf() only accepts num_partitions, which is marked as deprecated in the docstring.
However, the recommended and modern parameter target_partition_size is not exposed in the Python binding, even though it is fully supported in the Rust core.
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 at the Python binding for lance.index.train_ivf() and compare its exposed arguments with the Rust core implementation, which already supports target_partition_size. Done means the recommended target_partition_size parameter is available through the Python API instead of only the deprecated num_partitions parameter.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- python, rust
- Domain
- api
- Issue type
- Feature
- Difficulty
- 3/5
- Estimated time
- 1-2 days
- Activity status
- Quiet
- Clarity
- Mostly clear
- Newbie friendliness
- 68/100