Shekharrajak opened a new pull request, #2413: URL: https://github.com/apache/iceberg-rust/pull/2413
## Which issue does this PR close? Implements the `_pos` metadata column end-to-end. `table.scan().select(["x", "_pos"])` now returns a non-nullable `Int64` `_pos` column whose values are the row's ordinal position in the source data file, preserved across predicate pushdown, row-group skipping, and positional-delete row selection. Closes #1765. ## What changes are included in this PR? adds `metadata_columns::is_reader_supplied_metadata_field`, the new `arrow::reader::virtual_columns` helper module (maps `RESERVED_FIELD_ID_POS` → `RowNumber` field tagged with `PARQUET:field_id`) ## Are these changes tested? - [x] `cargo fmt --package iceberg -- --check` - [x] `cargo clippy -p iceberg --all-targets -- -D warnings` - [x] `cargo test -p iceberg --lib --tests` - [x] `cargo doc -p iceberg --no-deps` -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. To unsubscribe, e-mail: [email protected] For queries about this service, please contact Infrastructure at: [email protected] --------------------------------------------------------------------- To unsubscribe, e-mail: [email protected] For additional commands, e-mail: [email protected]
