[PR] GH-48986: [C++][Dataset] Integrate ORC stripe filtering with dataset scanner [arrow]

["cbb330 (via GitHub)" <gi...@apache.org>]

cbb330 opened a new pull request, #49013:
URL: https://github.com/apache/arrow/pull/49013

   ## Summary
   
   Part 5/15 of ORC predicate pushdown implementation.
   
   ⚠️ **Depends on PRs 1-4 being merged first**
   
   Integrates stripe filtering with Dataset API scanner:
   - Wire `FilterStripes()` into `OrcScanTask`
   - Log stripe skipping for observability
   - Feature flag: `ARROW_ORC_DISABLE_PREDICATE_PUSHDOWN`
   - Infrastructure ready for reader integration
   
   ## Feature Flag
   ```bash
   # Disable predicate pushdown if needed
   export ARROW_ORC_DISABLE_PREDICATE_PUSHDOWN=1
   ```
   
   **Part of stacked PR series. Review after PR 4.**


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Re: [PR] GH-48986: [C++][Dataset] Integrate ORC stripe filtering with dataset scanner (5/14) [arrow]

["cbb330 (via GitHub)" <gi...@apache.org>]

cbb330 closed pull request #49013: GH-48986: [C++][Dataset] Integrate ORC stripe filtering with dataset scanner (5/14)
URL: https://github.com/apache/arrow/pull/49013


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