Amazon Redshift will no longer support the creation of new Python UDFs starting November 1, 2025.
If you would like to use Python UDFs, create the UDFs prior to that date.
Existing Python UDFs will continue to function as normal. For more information, see the
blog post
HyperLogLog functions
Following, you can find descriptions for the HyperLogLog functions for SQL that Amazon Redshift supports.
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