[PR] fix(table): reject ambiguous row-id columns in position deltas [iceberg-go]

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

fallintoplace opened a new pull request, #1616:
URL: https://github.com/apache/iceberg-go/pull/1616

   ## What changed
   
   Require position-delta batches to contain at most one `_row_id` column. The shared lookup is used by `Reinsert`, `Insert`, and the null-column append path.
   
   ## Why
   
   Arrow schemas can contain duplicate field names. Selecting the first `_row_id` silently made reserved row-lineage metadata ambiguous and could ignore a conflicting or malformed second column.
   
   ## Testing
   
   - Added duplicate `_row_id` coverage for both `Reinsert` and `Insert`
   - `go test ./table`


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Re: [PR] fix(table): reject ambiguous row-id columns in position deltas [iceberg-go]

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

laskoviymishka merged PR #1616:
URL: https://github.com/apache/iceberg-go/pull/1616


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