What is Impala’s database query engine?

Impala is an open source, high-performance, distributed SQL query engine used for interactive querying on Apache Hadoop. It allows users to query large datasets using standard SQL language without needing to move or transform data. Impala can quickly process large volumes of data and integrate with other tools in the Hadoop ecosystem such as Apache Hive and Apache HBase. Its design goal is to provide fast query response times, enabling users to analyze large datasets in real-time.