Answer: OPTIMIZE table_name

The correct answer is **OPTIMIZE table_name**. This command consolidates small parquet files into larger ones, improving performance. The file size is automatically adjusted based on the table's size, though manual adjustments are possible for specific workloads. For more details, refer to [Databricks documentation on file management](https://docs.databricks.com/delta/optimizations/file-mgmt.html).

Author: LeetQuiz Editorial Team