Feature/orc adapter 2 review#26

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cbb330 wants to merge 9 commits intomain-originalfrom

feature/orc-adapter-2-review

Commits on Feb 26, 2026

[C++] Add ORC adapter column statistics and schema manifest support
cbb330
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[C++] Fix ORC adapter timestamp overflow, ReadStripes empty handling, and add tests

cbb330
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claude
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Commits on Mar 23, 2026

[C++][ORC] Introduce thin statistics wrapper for liborc
cbb330
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Commits on Mar 25, 2026

[C++][ORC] Reconcile stats and reader signatures with Parquet style
cbb330
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[C++][ORC] Align metadata/stat signatures to pointer-style parity
cbb330
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