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Vesko Karaganev

PROFILE

Vesko Karaganev

Worked on the percona/percona-server-mongodb repository to enhance query performance by refactoring the distinct scan index selection logic, particularly for queries involving wildcard indexes. Focused on improving the clarity, maintainability, and reliability of the index-choosing path, the work removed duplicated logic in the getIndexEntriesForDistinct function. This targeted update, implemented in C++ with an emphasis on database optimization and query planning, reduced the risk of inconsistent behavior across distinct queries. The changes enabled faster and more predictable distinct queries on wildcard indexes, supporting higher throughput workloads and contributing to the overall maintainability of the codebase.

Overall Statistics

Feature vs Bugs

100%Features

Repository Contributions

1Total
Bugs
0
Commits
1
Features
1
Lines of code
191
Activity Months1

Work History

October 2025

1 Commits • 1 Features

Oct 1, 2025

Month: 2025-10 — Performance-focused code quality update for percona/percona-server-mongodb. Delivered a targeted improvement to distinct scan index selection when wildcard indexes are involved, focusing on clarity, maintainability, and reliability of the index-choosing path. The work enhances query planning for distinct queries, especially with wildcard indexes, contributing to faster and more predictable performance.

Activity

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Quality Metrics

Correctness80.0%
Maintainability80.0%
Architecture80.0%
Performance80.0%
AI Usage20.0%

Skills & Technologies

Programming Languages

C++

Technical Skills

C++database optimizationquery planning

Repositories Contributed To

1 repo

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

percona/percona-server-mongodb

Oct 2025 Oct 2025
1 Month active

Languages Used

C++

Technical Skills

C++database optimizationquery planning