feat: parallel prefix scan for UNBOUNDED PRECEDING window aggregates - #2211

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avantgardnerio wants to merge 5 commits into

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avantgardnerio:brent/prefix-merge-scaffold

Commits on Aug 14, 2026

feat(core): add PrefixMergeExec for cross-partition windowed-aggregate state merge

avantgardnerio
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claude
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f85b988
docs: correct status claims that went stale when the pipeline went green

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claude
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85dc7f6
fix(core): review follow-ups — Overwrite doc, non_exhaustive, named type drift

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claude
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7ae3ca8
feat(core): metrics on PrefixMergeExec, split by apply path

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claude
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e4e1bb0
refactor(core): FinalizedPartitionState as a newtype

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d6a55a5