Worked on the apache/parquet-java repository to address a configuration issue affecting Parquet Global Column Statistics. Focused on correcting the default behavior of the global statistics enable flag, ensuring that statistics are enabled or disabled strictly according to user configuration. This involved updating the Java implementation to respect configuration-driven settings and enhancing test coverage to verify the intended behavior across different deployment scenarios. By resolving the misalignment between the default and configured states, the work improved the reliability of downstream data processing and query planning. The project leveraged skills in data engineering, Java, and Parquet file format to deliver this targeted fix.