delta-io/delta-kernel-rs
Jun 2026 – Jun 2026
1 Month active
Languages Used
Rust
Technical Skills
Rust programmingdata processingdata validationschema designunit testing
Christian Del Monte
PROFILE
Christian Del Monte
Worked on delta-io/delta-kernel-rs to deliver support for the void data type in the Delta protocol, enabling seamless reading of tables with void columns and maintaining compatibility with Spark. Developed a new Void primitive type in Rust, updated schema design to validate and prevent voids in nested structures such as arrays and maps, and ensured void fields are recursively dropped during scans so downstream engines never encounter them. Implemented comprehensive unit and integration tests, including scenarios involving parquet statistics and Arrow expressions, to ensure robust data validation and processing. This release introduced a semver-breaking change due to the new Void variant.
Overall Statistics
Feature vs Bugs
100%Features
Repository Contributions
1Total
Bugs
0
Commits
1
Features
1
Lines of code
2,221
Activity Months1
Your Network
47 peopleWork History
June 2026
1 Commits • 1 Features
Jun 1, 2026June 2026: Delivered Delta protocol void data type support in delta-kernel-rs, enabling reads of tables containing void columns while maintaining parity with Spark. Implemented a Void primitive type, added schema conversion rules, and ensured voids are excluded from scan results. Introduced validation to reject voids nested inside arrays or maps at schema load time and dropped void fields recursively during scans so engines never see them. Added comprehensive test coverage including fixture-based integration tests, in-memory tests, and scenarios involving parquet stats, arrow expressions, and FFI schema visits. This work prepares cross-engine compatibility and is a semver-breaking release due to the new Void variant and related FFI exposure (closes #739).
1 Commits • 1 Features
Jun 1, 2026June 2026: Delivered Delta protocol void data type support in delta-kernel-rs, enabling reads of tables containing void columns while maintaining parity with Spark. Implemented a Void primitive type, added schema conversion rules, and ensured voids are excluded from scan results. Introduced validation to reject voids nested inside arrays or maps at schema load time and dropped void fields recursively during scans so engines never see them. Added comprehensive test coverage including fixture-based integration tests, in-memory tests, and scenarios involving parquet stats, arrow expressions, and FFI schema visits. This work prepares cross-engine compatibility and is a semver-breaking release due to the new Void variant and related FFI exposure (closes #739).
June 2026
Activity
Loading activity data...
Quality Metrics
Correctness100.0%
Maintainability80.0%
Architecture100.0%
Performance80.0%
AI Usage40.0%
Skills & Technologies
Programming Languages
Rust
Technical Skills
Rust programmingdata processingdata validationschema designunit testing
Repositories Contributed To
Overview of all repositories you've contributed to across your timeline