Use the query optimization techniques described in this section to make queries run faster or as workarounds for queries that exceed …

Sep 26, 2025 · Athena's query engine can handle big datasets, but it requires careful optimization of data formats, partitioning …

You can use capacity reservations to get dedicated serverless processing capacity for the queries you run in Athena. With capacity …

Such a query can succeed most of the time but occasionally fail when the most common values end up being processed by the …

This type of query can run for a long time or even fail. For greater efficiency in your queries, look at the top or bottom N values, and …

To run the query, Athena must perform at least one million Amazon S3 list operations. Queries are fastest when you query on …

This topic provides general information and specific suggestions for improving the performance of your Athena queries, and how to …

Mar 9, 2026 · You receive the error message when the demands of the query exceed the resources that are available to the cluster …

After you run a query, you can get statistics on the input and output data processed, see a graphical representation of the time taken …

Jun 18, 2025 · In this blog, we’ll explore key strategies to optimize Amazon Athena query performance, reduce costs, and make the …