Worked on the apache/dolphinscheduler repository to enhance the reliability of SQL script processing for PostgreSQL migrations. Focused on backend development using Java and SQL, the work addressed a parsing issue in the SQL splitter by introducing logic to correctly handle dollar-quoted strings within PL/pgSQL DO blocks. This involved adding helper methods to detect and respect dollar-quoted strings, ensuring scripts were not prematurely split and reducing the risk of migration errors. The improvements contributed to safer production deployments by preventing corrupted script execution, aligning with best practices for database management and supporting robust, maintainable backend systems in enterprise environments.