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
Expressions
Topics
An expression is a combination of one or more values, operators, or functions that evaluate to a value. The data type of an expression is generally that of its components.
Simple expressions
A simple expression is one of the following:
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A constant or literal value
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A column name or column reference
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A scalar function
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An aggregate (set) function
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A window function
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A scalar subquery
Examples of simple expressions include:
5+12 dateid sales.qtysold * 100 sqrt (4) max (qtysold) (select max (qtysold) from sales)