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
Query processing
Amazon Redshift routes a submitted SQL query through the parser and optimizer to develop a query plan. The execution engine then translates the query plan into code and sends that code to the compute nodes for execution.
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