dttung2905 opened a new pull request, #735:
URL: https://github.com/apache/iceberg-go/pull/735
This should fully support read path and partially support write path
Unsupported write path:
- Rewrite/compaction: When overwrite or rewrite copies existing rows into
new data files, existing non-null `_row_id` and `_last_updated_sequence_number`
are not copied into the new files. Row lineage is preserved for appends and for
metadata/manifest list; it is not yet preserved when rewriting data files.
- Explicit null columns on append: New data files do not write
`_row_id/_last_updated_sequence_number` as null columns (they are omitted);
that is allowed by the
[spec](https://iceberg.apache.org/spec/#reserved-field-ids) and is not planned
in this PR.
>A data file with only new rows for the table may omit the
_last_updated_sequence_number and _row_id. If the columns are missing, readers
should treat both columns as if they exist and are set to null for all rows.
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