Andrey Shapatin worked on stabilizing the full-text search test suite for the GreengageDB/greengage repository, focusing on reducing flaky outcomes in automated testing. He addressed unreliable behavior in the fts_segment_reset test by implementing a synchronization mechanism in C within postmaster.c and related test files. This approach ensured that injected faults were fully processed before subsequent commands, improving test determinism and reliability. Leveraging skills in debugging, fault injection, and testing, Andrey’s work enabled faster development cycles and higher confidence in the full-text search subsystem. The depth of his contribution lay in enhancing the robustness of the test harness infrastructure.