Worked on the apache/gravitino repository to address a performance issue in the partitioning workflow. Focused on backend development and code optimization using Java, the developer improved runtime efficiency by caching the result of table.supportPartitions within the CatalogManager#doWithPartitionOps method. This approach eliminated redundant double lookups, reducing unnecessary computation and potential inconsistencies in partition handling. The change enhanced both performance and code readability without introducing new features, instead concentrating on resolving a specific bug. The work demonstrated attention to detail in optimizing backend processes and maintaining code clarity, contributing to a more efficient and maintainable codebase for the project.