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
COPY parameter reference
COPY has many parameters that can be used in many situations. However, not all parameters are supported in each situation. For example, to load from ORC or PARQUET files there is a limited number of supported parameters. For more information, see COPY from columnar data formats.