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Rafał Solarski

PROFILE

Rafał Solarski

Contributed to the trinodb/trino repository by building cloud storage integrations and strengthening test automation for backend systems. Developed the GcsHiveQueryRunner to enable Hive3 queries over Google Cloud Storage, addressing configuration and path handling challenges using Java and Hadoop. Enhanced documentation for QueryRunner VM options to improve onboarding and reduce misconfigurations. Improved test reliability for Iceberg BigLake and Polaris components by refactoring test code, introducing non-parallel execution to avoid quota issues, and adding S3 storage support with vended credentials. Focused on robust unit testing, refactoring, and cloud readiness, delivering features and fixes that improved CI stability and cloud-based analytics workflows.

Overall Statistics

Feature vs Bugs

75%Features

Repository Contributions

7Total
Bugs
1
Commits
7
Features
3
Lines of code
621
Activity Months3

Work History

June 2026

3 Commits • 1 Features

Jun 1, 2026

June 2026 monthly summary for trinodb/trino: Strengthened test reliability and cloud readiness for Iceberg BigLake and Polaris components. Key features delivered: Iceberg BigLake Metastore Connector smoke tests now run in non-parallel mode to prevent quota-driven failures; Polaris smoke tests improved with loadTable refactor for reuse and added vended credentials with S3 storage support for tests and query runner. Major bugs fixed: quota-related instability resolved by the non-parallel smoke test configuration. Overall impact: more deterministic test outcomes, faster and more stable CI feedback, and reduced maintenance through code reuse and cloud-ready test setup. Technologies/skills demonstrated: test refactoring, parallelization control, credential management, S3 integration, and end-to-end test automation traceability.

February 2026

3 Commits • 1 Features

Feb 1, 2026

February 2026 monthly summary for trinodb/trino: Delivered a new GcsHiveQueryRunner enabling Hive3 queries over data stored in Google Cloud Storage with proper GCS configuration and properties setup to improve cloud data access. Enhanced path handling to support special characters in GCS paths (# and ?) and aligned with Java SDK behavior for safety. Added comprehensive tests for discouraged chars in GCS paths to prevent regressions. These efforts expand cloud-based analytics capabilities, reduce data movement, and improve reliability for Hive workflows on GCS.

January 2026

1 Commits • 1 Features

Jan 1, 2026

January 2026: Delivered a targeted documentation update for QueryRunner VM options in trinodb/trino to improve developer clarity and reduce configuration errors. The change documents the VM options required by QueryRunner classes, aiding onboarding and aligning with VM usage guidelines.

Activity

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Quality Metrics

Correctness94.2%
Maintainability88.6%
Architecture91.4%
Performance85.6%
AI Usage20.0%

Skills & Technologies

Programming Languages

JavaMarkdownXML

Technical Skills

Cloud StorageGCS integrationHadoopJavaRefactoringTest AutomationTestingUnit Testingbackend developmentcloud computingcloud storage integrationdocumentationsoftware developmenttesting frameworksunit testing

Repositories Contributed To

1 repo

Overview of all repositories you've contributed to across your timeline

trinodb/trino

Jan 2026 Jun 2026
3 Months active

Languages Used

MarkdownJavaXML

Technical Skills

Javadocumentationsoftware developmentCloud StorageGCS integrationHadoop