AWS Certified Data Analytics Specialty 2021 – Hands-On - Presto on EMR

Presto is a powerful tool that connects to various big data databases, allowing SQL-style queries across them. It supports interactive queries at petabyte scale and is optimized for OLAP applications. Originally developed by Facebook, Presto is open-source and used by Amazon Athena. It offers interfaces like JDBC and Tableau, and supports connectors for HDFS, S3, Cassandra, and more. Presto is faster than Hive and integrates easily with Amazon EMR, but is not suitable for OLTP or batch processing.

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