perf(layout): add empty-range fast paths in chunked reader#6513
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caicancai wants to merge 1 commit intovortex-data:developfrom
Open
perf(layout): add empty-range fast paths in chunked reader#6513caicancai wants to merge 1 commit intovortex-data:developfrom
caicancai wants to merge 1 commit intovortex-data:developfrom
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Signed-off-by: cancaicai <2356672992@qq.com>
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This PR short-circuits empty row_range in ChunkedReader across split/pruning/filter/projection paths. It improves boundary-case performance in scenarios where planning/splitting or upstream pruning produces empty work units (e.g. split boundaries, highly selective filters), by avoiding unnecessary chunk iteration, async task setup, and result collection.
Behavior for non-empty ranges is unchanged.