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feat(stats): cap NDV at row count in statistics estimation#21081

Merged

xudong963 merged 4 commits intoapache:mainapache/datafusion:mainfrom

asolimando:asolimando/ndv-cap-row-countasolimando/datafusion:asolimando/ndv-cap-row-countCopy head branch name to clipboard

Apr 15, 2026

Conversation Commits4 (4)Checks Files changed

Merged

feat(stats): cap NDV at row count in statistics estimation#21081
xudong963 merged 4 commits intoapache:mainfrom
asolimando:asolimando/ndv-cap-row-count

Commits

Commits on Apr 10, 2026

Cap NDV at row count in joins, filters, and with_fetch
asolimando
committed
Add with_fetch NDV capping tests with skip
asolimando
committed
Preserve NDV precision in max_distinct_count when cap is not triggered
asolimando
committed
Pass Precision<usize> to collect_new_statistics instead of raw usize
asolimando
committed

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