During March 2026, Lingyang Ma focused on enhancing the reliability of Debezium’s PostgreSQL connector by addressing a critical bug in pgvector parsing. Working within the debezium/debezium repository, Lingyang resolved failures that occurred when empty sparse vectors were encountered, particularly for NOT NULL columns, by implementing early returns and ensuring correct Struct creation. This solution prevented DataException crashes and preserved accurate dimension metadata, directly improving ETL pipeline stability for downstream consumers. Lingyang reinforced these changes with targeted unit tests for edge cases, leveraging Java, SQL, and PostgreSQL expertise to deliver a robust backend fix that prioritized correctness and maintainability.