experiment feat(agg): TopK aggregation for count(*)/count(col) DESC/ASC LIMIT K#23687

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zhuqi-lucas wants to merge 11 commits into

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zhuqi-lucas:feat/topk-count-aggregate

Commits on Jul 18, 2026

feat(agg): extend TopKAggregation to `count(*)` DESC/ASC LIMIT K
zhuqi-lucas
committed
feat(agg): Zippy-lite streaming TopK-Count with new-group gate + sweep
zhuqi-lucas
committed
fix(agg): use StatisticsContext for input row-count estimate
zhuqi-lucas
committed
fix(agg): count gated new groups in `count_topk_groups_seen` too
zhuqi-lucas
committed
feat(agg): share global top-K threshold across Final partitions
zhuqi-lucas
committed
feat(agg): allow multi-column GROUP BY for count TopK
zhuqi-lucas
committed
Merge branch 'main' into feat/topk-count-aggregate
zhuqi-lucas
authored
fix(agg): cache TopK threshold; per-row gate must not call current_threshold
zhuqi-lucas
committed
fix(agg): force remaining=0 at end-of-input so final sweep actually prunes
zhuqi-lucas
committed

Commits on Jul 19, 2026