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WIP: Refactor NLJ with JoinAccelerator#21922

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2010YOUY01 wants to merge 13 commits intoapache:mainfrom
2010YOUY01:join-accelerator
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WIP: Refactor NLJ with JoinAccelerator#21922
2010YOUY01 wants to merge 13 commits intoapache:mainfrom
2010YOUY01:join-accelerator

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Which issue does this PR close?

This PR only includes

  • Introducing JoinAccelerator API for runtime index, the dynamic filter part is planned to be added in a follow-up PR
  • Refactor NLJ with JoinAccelerator

Still WIP and needs cleanup.

Rationale for this change

What changes are included in this PR?

Are these changes tested?

Are there any user-facing changes?

@github-actions github-actions Bot added logical-expr Logical plan and expressions core Core DataFusion crate physical-plan Changes to the physical-plan crate labels Apr 29, 2026
@github-actions github-actions Bot removed the logical-expr Logical plan and expressions label Apr 30, 2026
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core Core DataFusion crate physical-plan Changes to the physical-plan crate

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Proposal: Refactor NLJ into an extensible framework for specialized joins

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