Summary:
- The article discusses a new feature in Apache Parquet, a popular open-source data storage format, called "User-Defined Parquet Indexes."
- This feature allows users to create custom indexes on Parquet data, which can significantly improve the performance of queries by enabling faster data retrieval.
- The article explains how these user-defined indexes work, the benefits they provide, and how developers can implement them in their Parquet-based applications.