Query analysis and improvement - Amazon Redshift
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Amazon Redshift will no longer support the use of Python UDFs after June 30, 2026. We will start enforcing it in phases. For more information on the details of Python end of life and migration options, see the blog post that was published on June 30, 2025.

Query analysis and improvement

Retrieving information from an Amazon Redshift data warehouse involves running complex queries on extremely large amounts of data, which can take a long time to process. To make sure that queries process as quickly as possible, there are a number of tools you can use to identify potential performance issues.

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