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Core: Expose row lineage in ChangelogScanTask and changelog schema for v3+ tables - #17792

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hemanthboyina wants to merge 2 commits into
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hemanthboyina:row_changelog
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Core: Expose row lineage in ChangelogScanTask and changelog schema for v3+ tables#17792
hemanthboyina wants to merge 2 commits into
apache:mainfrom
hemanthboyina:row_changelog

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@hemanthboyina

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In row lineage every row gets a stable _row_id assigned at commit time. But the changelog scan never exposed it. You could scan for changes but had no way to know which row IDs were added or deleted, making it impossible to correlate changelog events with actual rows across snapshots.

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