lance-format / lance-format/lance

Move `Transaction` and `write_fragments` to `lance-table`

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#4,899 0 comments 0 reactions 1 assignee View on GitHub

@wjones127 is already working on this.

Since Oct 3, 2025.

enhancement
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Rust
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Description

We want to move engine-agnostic (not dependent on DataFusion) operations to lance-table. Right now Transaction and write_fragments are in lance, which takes a whole lot of time to compile. Moving this earlier should save some time in compilation. Plus, when changing things in lance, they won't need to be re-compiled.

Image

write_fragments does need SendableRecordBatchStream, which comes from datafusion-execution, but that's a pretty minor dependency.

This is part of this discussion: https://github.com/lancedb/lance/discussions/4779#discussioncomment-14460917

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