datastax/cassandra
Jan 2025 – Apr 2025
2 Months active
Languages Used
JavaadocbnfcqltextileAsciiDocCqlPython
Technical Skills
Backend DevelopmentCQLDatabase DevelopmentDistributed SystemsFull Stack DevelopmentJava
Andrés de la Peña
PROFILE
Andrés De La Peña
Worked on the datastax/cassandra repository to deliver three features over two months, focusing on enhancing query capabilities and system robustness. Developed end-to-end support for ANN options in CQL SELECT queries, including parser, validation, and messaging protocol updates in Java to improve query accuracy and compatibility. Introduced a new messaging version and system property to enable safe protocol upgrades, aligning version naming conventions for clarity. Added index hints to SELECT queries, allowing explicit index inclusion or exclusion for better query planning and diagnostics. Leveraged expertise in CQL syntax, distributed systems, and database internals to improve upgrade safety and error reporting.
Overall Statistics
Feature vs Bugs
100%Features
Repository Contributions
4Total
Bugs
0
Commits
4
Features
3
Lines of code
8,107
Activity Months2
Your Network
43 peopleShared Repositories
43
Berenguer BlasiMember
BerengMember
Brandon WilliamsMember
Brandon WilliamsMember
Branimir LambovMember
blambovMember
Christophe BornetMember
Ekaterina DimitrovaMember
Enrico OlivelliMember
Work History
April 2025
2 Commits • 1 Features
Apr 1, 2025April 2025 monthly summary: Delivered index hints and index-compatibility enhancements for Cassandra to improve query planning, error reporting, and upgrade safety. The work reduces query plan variability, clarifies upgrade diagnostics, and aligns API naming for clearer technical communication across the team.
2 Commits • 1 Features
Apr 1, 2025April 2025 monthly summary: Delivered index hints and index-compatibility enhancements for Cassandra to improve query planning, error reporting, and upgrade safety. The work reduces query plan variability, clarifies upgrade diagnostics, and aligns API naming for clearer technical communication across the team.
April 2025
January 2025
2 Commits • 2 Features
Jan 1, 2025January 2025 monthly summary for datastax/cassandra focusing on business value and technical delivery. Implemented end-to-end enhancements for ANN-based queries and prepared the ground for future protocol upgrades, improving query accuracy and forward compatibility.
January 2025
2 Commits • 2 Features
Jan 1, 2025January 2025 monthly summary for datastax/cassandra focusing on business value and technical delivery. Implemented end-to-end enhancements for ANN-based queries and prepared the ground for future protocol upgrades, improving query accuracy and forward compatibility.
Activity
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Quality Metrics
Correctness90.0%
Maintainability90.0%
Architecture90.0%
Performance75.0%
AI Usage20.0%
Skills & Technologies
Programming Languages
AsciiDocCqlJavaPythonTextileadocbnfcqltextile
Technical Skills
Backend DevelopmentCQLCQL SyntaxCassandraDatabase DevelopmentDatabase InternalsDistributed SystemsError HandlingFull Stack DevelopmentIndex ManagementJavaProtocol DesignQuery OptimizationSystem ConfigurationVersion Control
Repositories Contributed To
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