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[feature](be) Add PageIO read-ahead, I/O coalescing, and cache block hole filling - #67292

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bobhan1:feature/read-ahead-io-coalescing-phase2

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[feature](be) Add PageIO read-ahead, I/O coalescing, and cache block hole filling#67292
bobhan1 wants to merge 19 commits into
apache:masterfrom
bobhan1:feature/read-ahead-io-coalescing-phase2

Commits on Oct 26, 2026
- [feature](be) Add linear file range coalescing
  bobhan1
  committed
  cbf5b7c
- [feature](be) Add cache-aware file range planning
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  committed
  a91b9ef
- [feature](be) Add file range read scheduler
  bobhan1
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  ec0e694
- [feature](be) Reuse remote-only reads for no-write ranges
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  cce79c0
- [feature](be) Add query read-ahead runtime ownership
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  committed
  1525981
- [improvement](be) Add opt-in file range IO tracing
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  1704e46
- [fix](be) Scope filesystem error-code imports to their functions
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  c2e118a
- [feature](be) Add page-driven column read-ahead windows
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  d777e3f
- [feature](be) Add segment range read-ahead coordination
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  7031a0c
- [feature](be) Connect scalar column readers to range read-ahead
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  2df6426
- [feature](be) Initialize scan read-ahead once after pruning
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  eda322c
- [feature](be) Add complete-block cache write handoff and admission
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  4339255
- [feature](be) Split consumed ranges for cache writeback
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  d42c508
- [feature](be) Add cache block hole-fill planning
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  915d379
- [feature](be) Add background partial block writeback
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  30a8121
- [feature](be) Initialize background hole fill
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  c83110e
- [feature](be) Route consumed ranges to cache writeback
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  committed
  885eaa0
- [feature](be) Connect read-ahead range writeback
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  committed
  a0126d0
- [feature](be) Extend range read-ahead to point queries
  bobhan1
  committed
  e8b140b

Commits

Commits on Oct 26, 2026