apache/paimon
Jan 2026 – Jun 2026
2 Months active
Languages Used
JavaPythonYAML
Technical Skills
API DevelopmentJavaPythonUnit Testingbackend developmentunit testing
jianguotian
PROFILE
Jianguotian
Worked on the apache/paimon repository over two months, delivering three features focused on backend and API development using Java and Python. Introduced totalBuckets support in PartitionStatistics and real UUIDs for IcebergTable, ensuring backward compatibility and robust serialization while expanding analytics and governance capabilities. Enhanced test coverage and serialization safety to prevent regressions as new fields and interfaces were added. Later, implemented native MOSAIC file format support in FormatTable, enabling ARRAY and MAP data types and upgrading dependencies for improved interoperability. Added comprehensive unit tests to validate new functionality, strengthening data workflows and broadening the system’s data-model capabilities.
Overall Statistics
Feature vs Bugs
100%Features
Repository Contributions
4Total
Bugs
0
Commits
4
Features
3
Lines of code
553
Activity Months2
Your Network
167 peopleWork History
June 2026
2 Commits • 1 Features
Jun 1, 2026June 2026: Delivered native MOSAIC file format support in Paimon's FormatTable, extending core options to enable MOSAIC usage, and upgraded dependencies to enable ARRAY/MAP read/write. Added tests validating MOSAIC functionality with the new data types. This work broadens data-model capabilities, enhances interoperability with MOSAIC-based pipelines, and strengthens end-to-end data workflows.
2 Commits • 1 Features
Jun 1, 2026June 2026: Delivered native MOSAIC file format support in Paimon's FormatTable, extending core options to enable MOSAIC usage, and upgraded dependencies to enable ARRAY/MAP read/write. Added tests validating MOSAIC functionality with the new data types. This work broadens data-model capabilities, enhances interoperability with MOSAIC-based pipelines, and strengthens end-to-end data workflows.
June 2026
January 2026
2 Commits • 2 Features
Jan 1, 2026January 2026 — Apache Paimon (apache/paimon). Focused on feature delivery with backward-compatible changes and strengthened test coverage to preserve stability. Delivered two major features with clear business value and prepared the system for improved analytics and governance.
January 2026
2 Commits • 2 Features
Jan 1, 2026January 2026 — Apache Paimon (apache/paimon). Focused on feature delivery with backward-compatible changes and strengthened test coverage to preserve stability. Delivered two major features with clear business value and prepared the system for improved analytics and governance.
Activity
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Quality Metrics
Correctness100.0%
Maintainability80.0%
Architecture90.0%
Performance80.0%
AI Usage20.0%
Skills & Technologies
Programming Languages
JavaPythonYAML
Technical Skills
API DevelopmentBackend DevelopmentDependency ManagementJavaPythonTestingUnit Testingbackend developmentunit testing
Repositories Contributed To
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