[fix](io) Harden Parquet reader-local cache for File Scanner V2 - #66548

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Gabriel39 wants to merge 11 commits into

apache:branch-4.1from

Gabriel39:fix/external-parquet-cache-block-reuse-4.1

Commits on Aug 7, 2026

[improvement](parquet) Support multi-column OR and DNF raw filters
Gabriel39
committed
614d5bc
[improvement](parquet) Use predicate tree for compound page pruning
Gabriel39
committed
3014486
[improvement](io) Reduce external scan merge-read amplification
Gabriel39
committed
17857e1
[improvement](parquet) Decode fragmented dictionary indices in one pass
Gabriel39
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9d157b9
[improvement](io) Reuse hot external cache blocks earlier
Gabriel39
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12a6cea
[improvement](io) Add scanner-v2 reader-local cache metrics
Gabriel39
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57c1d27
[improvement](io) Share scanner-v2 reader cache per query
Gabriel39
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cecb633
[improvement](io) Isolate scanner cache locks by file
Gabriel39
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33fcdf2
[fix](io) Harden scanner reader-local cache
Gabriel39
committed
b2e5d97

Commits on Aug 8, 2026

[fix](io) Coalesce overlapping staged read ranges
Gabriel39
committed
721924f
[fix](io) Align reader cache with stream ownership
Gabriel39
committed
dde77c6