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- What it is
- A distributed SQL query engine for interactive analytics — designed to answer ad hoc queries in seconds, over data where it already lives.
- Queries across connectors (Amazon S3, HDFS, relational databases, Cassandra) and joins between them in one statement. It stores no data of its own.
- The project forked; the actively developed branch is usually called Trino.
- Where it runs on AWS
- Amazon EMR as an installable application.
- Amazon Athena is the serverless version of this idea — Athena is built on Presto/Trino.
- Not to be confused with
- Apache Hive — batch-oriented SQL, higher latency, better for long transformations. Presto is the interactive one.