feat: bloom filter pushdown#2398
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xanderbailey
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May 2, 2026
| /// against them to filter out row groups that definitely don't match. | ||
| async fn filter_row_groups_by_bloom_filter( | ||
| predicate: &crate::expr::BoundPredicate, | ||
| builder: &mut ParquetRecordBatchStreamBuilder<ArrowFileReader>, |
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mut reference is because get_row_group_column_bloom_filter requires it.
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…-endian (#2397) ## Which issue does this PR close? <!-- We generally require a GitHub issue to be filed for all bug fixes and enhancements and this helps us generate change logs for our releases. You can link an issue to this PR using the GitHub syntax. For example `Closes #123` indicates that this PR will close issue #123. --> - Closes #. Found this whilst working on #2398 ## What changes are included in this PR? [Spec](https://iceberg.apache.org/spec/#binary-single-value-serialization) says `Int128` and `UInt128` are big-endian not little-endian and indeed we are using big-endian [here](https://github.com/apache/iceberg-rust/blob/c1538de36dd53e491299b62ad89286f2db496bc7/crates/iceberg/src/arrow/schema.rs#L761) for example. I think it's just the doc string which needs correcting. <!-- Provide a summary of the modifications in this PR. List the main changes such as new features, bug fixes, refactoring, or any other updates. --> ## Are these changes tested? <!-- Specify what test covers (unit test, integration test, etc.). If tests are not included in your PR, please explain why (for example, are they covered by existing tests)? -->
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Which issue does this PR close?
What changes are included in this PR?
Adds bloom filter pushdown for equality predicates during Parquet reads. When enabled, the reader loads bloom filters from row group column chunks and uses them to skip row groups that definitely don't contain the queried values.
Key points:
bloom_filter_enabledoption onTableScanBuilderandArrowReaderBuilder(off by default since it requires extra I/O per column per row group)eqorinpredicates — range predicates and other operators are ignoredAre these changes tested?