feat: parallel BWAG for the range-window shape (h2o Q8) - #2223

Merged

avantgardnerio merged 12 commits into

apache:mainfrom

avantgardnerio:brent/parallel-range-window

Aug 11, 2026

Commits on Aug 9, 2026

refactor(core): replace PerPartitionFilterExec with RangeFilterExec
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9971682

Commits on Aug 10, 2026

ci(h2o): enable parallel_window rule so Q8 exercises the parallel path
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90ae6db
WIP fix(scheduler): halo-aware range-repartition routing

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style: cargo fmt
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refactor(core): repartition_routing_expr walks the partition-preserving spine

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test(core): cover both halo sides + far-partition non-bleed

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refactor(scheduler): halo walker matches by producer stage_id + hard-errors on shape violations

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less doc
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fix(scheduler): pair RFE with boundary by descent, not routing_expr

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chore: move parallel-range-window design notes out of tree

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refactor(scheduler): collapse ParallelWindow shape gate + rewrite into one fn

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ea5108a

Commits on Aug 11, 2026

fix(scheduler): gate ParallelWindow rule to ASC ORDER BY

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5efd82a