tanmayrauth opened a new pull request, #1099:
URL: https://github.com/apache/iceberg-go/pull/1099
Parent: #999
Preserves `_row_id` through CoW rewrites and compaction on v3 tables. The
scanner synthesizes row IDs from file metadata, the filter is applied
post-synthesis to preserve correct positions, and the writer stores `_row_id`
explicitly in output Parquet. `_last_updated_sequence_number` is left null to
inherit from the new file's `data_sequence_number`.
Also documents that `next-row-id` accounting intentionally overcounts
(matching Java's `ManifestListWriter.V4Writer`) and removes the old
`Projection()` synthesis helpers replaced by the explicit `WithRowLineage()`
scan option.
## Test plan
- `TestCoWRewritePreservesRowID` : verifies surviving rows keep original
`_row_id` after a CoW delete
- `TestCoWRewriteRowIDNextRowIDAccounting` : validates next-row-id
advances correctly
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