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Andrei V. Lepikhov

PROFILE

Andrei V. Lepikhov

Over seven months, Andrey Lepikhov engineered core reliability and replication features for the pgEdge/spock repository, focusing on PostgreSQL extension development. He delivered robust multi-node cluster automation, enhanced replication progress tracking, and streamlined protocol handling, using C, PL/pgSQL, and Docker to ensure cross-platform stability. His work included refactoring build systems, improving error handling, and strengthening CI/CD pipelines with GitHub Actions and automated testing. By addressing complex issues in distributed database synchronization and transactional consistency, Andrey reduced operational risk and maintenance overhead. His contributions demonstrated deep expertise in backend development, database internals, and system programming, resulting in a maintainable, resilient codebase.

Overall Statistics

Feature vs Bugs

60%Features

Repository Contributions

86Total
Bugs
20
Commits
86
Features
30
Lines of code
16,340
Activity Months7

Your Network

17 people

Work History

March 2026

1 Commits

Mar 1, 2026

Month: 2026-03 — Focused on stabilizing test environments and streamlining CI for pgEdge/spock. Delivered fixes to ensure reliable TAP test execution and reduced CI noise, enabling faster feedback and lower maintenance.

February 2026

10 Commits • 2 Features

Feb 1, 2026

February 2026 monthly summary for pgEdge/spock focusing on reliable replication, robust synchronization, and maintainability. Highlights include feature delivery across replication paths, targeted bug fixes to ensure fast failure and stable operation, and documentation alignment with current protocol and implementation.

January 2026

23 Commits • 9 Features

Jan 1, 2026

January 2026 — pgEdge/spock: delivered a robust Docker-based foundation, scalable multi-node testing, and CI improvements that accelerate releases and increase reliability. Key deliverables include: Docker base image enhancements with complete build dependencies, metadata for reproducibility, and multiplatform support; a multi-node Spock cluster with automated testing enabling end-to-end validation and easier on-boarding; a three-node installcheck workflow plus parallel spockbench in CI to reduce feedback cycles; core reliability improvements through centralized shared memory initialization and safer data handling; and health checks and standardization for zodan subscriptions and slot naming to prevent misconfigurations. These changes enable faster release cycles, higher confidence in cluster stability, and better developer efficiency, with demonstrated proficiency in Docker, Buildx, QEMU, GitHub Actions, Spock, and PostgreSQL internals.

December 2025

22 Commits • 10 Features

Dec 1, 2025

December 2025: Delivered a set of core reliability, performance, and maintainability improvements for the Spock extension, focusing on API simplification, replication hardening, and observability. Key features include removing legacy SPI API support from the Spock protocol and moving check_simple_rowfilter_expr to the spock_compat module, enabling broader compatibility and easier maintenance. Strengthened transactional and synchronization guarantees: added guards around progress state with a lock, migrated to HTAB-based progress information, and refined subscription syncing to reflect accurate progress state. Fixed critical replication behavior: disallowed delta-apply on nullable columns and addressed generated-columns replication across initial sync and runtime messages. Improved reliability and operational efficiency: introduced quiet mode (spock.enable_quiet_mode) to reduce log verbosity, and implemented AutoDDL transaction guards plus DDL filtering to prevent unsafe commands from replication. Overall, these changes improve stability, performance, and developer productivity, with clearer boundaries for future evolution.

November 2025

15 Commits • 2 Features

Nov 1, 2025

November 2025 (pgEdge/spock): Delivered substantive improvements to distributed replication reliability and testing, introduced a security-label delta_apply prototype (subsequently cleaned up to simplify the codebase), and strengthened maintainability across the repository. Key outcomes include enhanced replication health tracking, accurate LSN handling, and more robust multi-node synchronization, complemented by expanded test coverage for 2+1 configurations and comprehensive TAP testing. The work reduces operational risk in distributed deployments and enables safer upgrades through improved DSN handling, per-database progress reporting, and safer cluster teardown.

October 2025

10 Commits • 5 Features

Oct 1, 2025

In October 2025, pgEdge/spock delivered meaningful business value through codebase cleanup, protocol hardening, and CI/test improvements. Key changes include deprecating legacy features (dropping Snowflake-related paths and legacy PostgreSQL compatibility; SpockCtl cleanup), strengthening Spock protocol handling and error reporting, stabilizing runtime behavior (COMMIT memory handling and WAL-based re-sync), introducing a stable subscription ID generator, and enhancing CI/testing infrastructure with a transient Docker image and GitHub Actions workflow. These efforts reduce maintenance costs, prevent data inconsistencies, and accelerate safe delivery of features while improving test reliability and onboarding experiences.

September 2025

5 Commits • 2 Features

Sep 1, 2025

In September 2025, the pgEdge/spock project delivered stability, resilience, and security improvements that enhance PostgreSQL 18 compatibility, reinforce replication repair workflows, and reduce operational risk. Key work spanned build stability, repair-mode state management, apply worker resilience, and secure logging, with targeted tests to validate behavior across real-world scenarios.

Activity

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Quality Metrics

Correctness91.6%
Maintainability85.2%
Architecture86.2%
Performance84.4%
AI Usage25.2%

Skills & Technologies

Programming Languages

BashCDockerfileJSONMakefileMarkdownPL/pgSQLPerlSQLShell

Technical Skills

Backend DevelopmentBug FixingBuild SystemsBuild systemsC ProgrammingC programmingCI/CDCode RefactoringContainerizationContinuous IntegrationCross-platform DevelopmentDatabase AdministrationDatabase InternalsDatabase ManagementDatabase Replication

Repositories Contributed To

1 repo

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

pgEdge/spock

Sep 2025 Mar 2026
7 Months active

Languages Used

CDockerfileJSONMakefilePL/pgSQLSQLShellYAML

Technical Skills

Backend DevelopmentBuild SystemsBuild systemsC ProgrammingC programmingDatabase Administration