influxdata/iceberg-rust
Oct 2024 – Sep 2025
6 Months active
Languages Used
RustPythonC++
Technical Skills
API UpdatesDependency ManagementFile I/ORustData EngineeringDistributed Systems
Scott Donnelly
PROFILE
Scott Donnelly
Scott Donnelly developed robust delete-file support for the influxdata/iceberg-rust repository, focusing on accurate data pruning and efficient scan workflows. Over six months, he architected and implemented foundational components for parsing and applying both positional and equality deletes, integrating these features into ArrowReader and FileScanTask. Using Rust and leveraging technologies like Apache Iceberg and Arrow, Scott introduced structures such as DeleteFileLoader and DeleteFileManager, enabling row-level delete filtering and predicate generation for scan queries. His work emphasized data correctness, performance optimization, and maintainable system design, resulting in a well-tested, extensible foundation for advanced data engineering workflows in distributed environments.
Overall Statistics
Feature vs Bugs
71%Features
Repository Contributions
9Total
Bugs
2
Commits
9
Features
5
Lines of code
3,488
Activity Months6
Your Network
54 people
Work History
September 2025
1 Commits • 1 Features
Sep 1, 2025September 2025 monthly summary for influxdata/iceberg-rust: Key feature delivered was the Scan Delete File Support for equality delete parsing, completing the end-to-end series of PRs to enable scan delete file support. The changes include adding parsing capabilities for equality delete files in DeleteFileLoader and extending CachingDeleteFileLoader to process equality delete record batch streams and generate predicates for delete conditions. This work centers on improving data correctness, query accuracy, and governance when handling deletes.
1 Commits • 1 Features
Sep 1, 2025September 2025 monthly summary for influxdata/iceberg-rust: Key feature delivered was the Scan Delete File Support for equality delete parsing, completing the end-to-end series of PRs to enable scan delete file support. The changes include adding parsing capabilities for equality delete files in DeleteFileLoader and extending CachingDeleteFileLoader to process equality delete record batch streams and generate predicates for delete conditions. This work centers on improving data correctness, query accuracy, and governance when handling deletes.
September 2025
June 2025
2 Commits • 1 Features
Jun 1, 2025June 2025 monthly summary for influxdata/iceberg-rust: Focused feature work on delete-file support and positional delete parsing. No explicit major bug fixes reported this month; effort concentrated on building robust foundations for delete-file workflows and correct deletion semantics.
June 2025
2 Commits • 1 Features
Jun 1, 2025June 2025 monthly summary for influxdata/iceberg-rust: Focused feature work on delete-file support and positional delete parsing. No explicit major bug fixes reported this month; effort concentrated on building robust foundations for delete-file workflows and correct deletion semantics.
April 2025
2 Commits • 1 Features
Apr 1, 2025April 2025 monthly summary for influxdata/iceberg-rust: Implemented row-level delete support for ArrowReader and FileScanTask, enabling more precise data filtering and robust delete semantics across data files. This included computing RowSelection from a RoaringTreemap to exclude deleted rows from the RecordBatchStream and integrating equality-delete criteria via equality_ids in FileScanTaskDeleteFile. The changes improve data correctness during scans and set the foundation for stronger delete reclamation and performance optimizations.
2 Commits • 1 Features
Apr 1, 2025April 2025 monthly summary for influxdata/iceberg-rust: Implemented row-level delete support for ArrowReader and FileScanTask, enabling more precise data filtering and robust delete semantics across data files. This included computing RowSelection from a RoaringTreemap to exclude deleted rows from the RecordBatchStream and integrating equality-delete criteria via equality_ids in FileScanTaskDeleteFile. The changes improve data correctness during scans and set the foundation for stronger delete reclamation and performance optimizations.
April 2025
March 2025
2 Commits • 1 Features
Mar 1, 2025February 2025-03 Monthly Summary for repo influxdata/iceberg-rust: Delivered targeted enhancements to the ArrowReader path and robustness of boolean logic handling with nulls. The work emphasizes data correctness, efficient delete-file support, and practical unit testing to validate changes.
March 2025
2 Commits • 1 Features
Mar 1, 2025February 2025-03 Monthly Summary for repo influxdata/iceberg-rust: Delivered targeted enhancements to the ArrowReader path and robustness of boolean logic handling with nulls. The work emphasizes data correctness, efficient delete-file support, and practical unit testing to validate changes.
February 2025
1 Commits • 1 Features
Feb 1, 2025February 2025: Delivered foundational support for positional and equality delete files within table scans in influxdata/iceberg-rust. Extended the FileScanTask to carry delete file paths and introduced DeleteFileIndex, establishing the architecture required for future optimizations and tighter integration with scan workflows. This groundwork enables more accurate data pruning and paves the way for future performance improvements in subsequent releases.
1 Commits • 1 Features
Feb 1, 2025February 2025: Delivered foundational support for positional and equality delete files within table scans in influxdata/iceberg-rust. Extended the FileScanTask to carry delete file paths and introduced DeleteFileIndex, establishing the architecture required for future optimizations and tighter integration with scan workflows. This groundwork enables more accurate data pruning and paves the way for future performance improvements in subsequent releases.
February 2025
October 2024
1 Commits
Oct 1, 2024October 2024: Internal iceberg-rust maintenance focused on OpenDAL API compatibility and ensuring robust file existence checks after library upgrade. Upgraded OpenDAL to 0.50.1 and migrated deprecated is_exist usage to exists across the codebase, preserving I/O semantics and preventing runtime regressions.
October 2024
1 Commits
Oct 1, 2024October 2024: Internal iceberg-rust maintenance focused on OpenDAL API compatibility and ensuring robust file existence checks after library upgrade. Upgraded OpenDAL to 0.50.1 and migrated deprecated is_exist usage to exists across the codebase, preserving I/O semantics and preventing runtime regressions.
Activity
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Quality Metrics
Correctness90.0%
Maintainability86.6%
Architecture86.6%
Performance77.8%
AI Usage22.2%
Skills & Technologies
Programming Languages
C++PythonRust
Technical Skills
API UpdatesApache IcebergArrowArrow Data FormatBoolean LogicData EngineeringDependency ManagementDistributed SystemsError HandlingFile I/OFile ProcessingParquetPerformance OptimizationPredicate EvaluationRust
Repositories Contributed To
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