HyperLogLog functions - Amazon Redshift
Services or capabilities described in AWS documentation might vary by Region. To see the differences applicable to the AWS European Sovereign Cloud Region, see the AWS European Sovereign Cloud User Guide.

Amazon Redshift will no longer support the creation of new Python UDFs starting Patch 198. Existing Python UDFs will continue to function until June 30, 2026. For more information, see the blog post .

HyperLogLog functions

Following, you can find descriptions for the HyperLogLog functions for SQL that Amazon Redshift supports.