In November 2024, Jay Chemburkar enhanced schema derivation for constant aggregation operators in the mongodb/mongosql repository, focusing on improving query correctness and downstream engine reliability. He implemented custom serialization and deserialization for date and string manipulation functions using Rust, enabling more accurate schema inference for complex queries. Jay also developed comprehensive tests to validate these new capabilities, ensuring robust integration and reducing schema-related query planning errors. His work leveraged skills in custom serialization, schema derivation, and testing, and contributed to safer expansion of aggregation features within the pipeline. No major bugs were addressed during this period, reflecting focused feature development.