lance-format / lance-format/lance
Order by column should be eagerly materialized when it is small
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@kaori-seasons is already working on this.
Since Nov 25, 2025.
enhancement
- Dominant language
- Rust
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Description
import lance
import lance.debug
import pyarrow as pa
import shutil
shutil.rmtree("/tmp/test.lance", ignore_errors=True)
table = pa.table({"a": [1, 2, 3], "b": [4, 5, 6]})
ds = lance.write_dataset(table, "/tmp/test.lance")
print(ds.scanner(columns=["_rowid", "a"], order_by=["b"]).explain_plan())
I would not expect there to be a TakeExec but there is.
Furthermore, the scan fails if _rowid is not manually specified (this should not be required)
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