Summary
In this chapter, we had a deeper look at the Amazon Athena service, which is an AWS-managed version of Apache Presto. We looked at how to optimize our data and queries to increase query performance and reduce costs.
Then, we explored how Athena can be used as a SQL query engine – not only for data in an Amazon S3 data lake but also for external data sources such as other database systems, data warehouses, and even CloudWatch logs using Athena Query Federation.
Finally, we explored Athena Workgroups, which let us manage governance and costs. Workgroups can be used to enforce specific settings for different teams or projects, and can also be used to limit the amount of data that's scanned by queries.
In the next chapter, we will take a deeper dive into another Amazon tool for data consumers as we look at how we can create rich visualizations and dashboards using Amazon QuickSight.