What is Presto?

Presto is an open-source distributed SQL query engine designed for running interactive analytic queries against data sources of all sizes ranging from gigabytes to petabytes. It is a parallel processing engine that leverages Apache Hadoop and Apache Cassandra, among other data sources.

Key features of Presto include:

• Speed: It is designed for low-latency queries, making it suitable for interactive data exploration.
• Compatibility: Presto can query data from various sources without needing to move the data, including Hive, Cassandra, relational databases (like MySQL, PostgreSQL), and more.
• Scalability: It can handle large datasets across multiple nodes in a cluster.

Example: A data analyst might use Presto to quickly run complex queries on a large dataset stored in Hadoop Distributed File System (HDFS) to analyze user behavior patterns for a retail company.

For cloud-based solutions, Tencent Cloud offers services that can integrate with Presto for scalable and efficient data querying. For instance, Tencent Cloud's Big Data Engine (TBDE) can be used to deploy and manage Presto clusters, providing a managed service that simplifies the setup and operation of Presto in the cloud.