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Posted to issues@paimon.apache.org by "JingsongLi (via GitHub)" <gi...@apache.org> on 2026/09/21 09:06:51 UTC
[PR] feat(read): preserve physical row IDs with data predicates [paimon-rust]
JingsongLi opened a new pull request, #900:
URL: https://github.com/apache/paimon-rust/pull/900
## Summary
- Preserve the original physical `_ROW_ID` when a data predicate removes rows.
- Read predicate-only columns internally, attach row IDs before exact residual filtering, and return only requested columns.
- Keep file-index, row-range and deletion-vector selections aligned with physical positions. Decoder-side predicate filtering is disabled only for this path.
## Verification
- `cargo test -p paimon table::data_file_reader:: --lib --no-default-features --features storage-memory` (27 passed)
- `cargo test -p paimon row_id --lib --no-default-features --features storage-memory,storage-fs` (94 passed)
- `cargo fmt --check` and `git diff --check`
The new end-to-end test covers both `.row` and Parquet files, a predicate column absent from the output projection, row ranges, and a deletion vector.
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Re: [PR] feat(read): preserve physical row IDs with data predicates [paimon-rust]
Posted by "JingsongLi (via GitHub)" <gi...@apache.org>.
JingsongLi merged PR #900:
URL: https://github.com/apache/paimon-rust/pull/900
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