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Verifying that the correct files are present in your bucket - Amazon Redshift
Services or capabilities described in Amazon Web Services documentation might vary by Region. To see the differences applicable to the China Regions, see Getting Started with Amazon Web Services in China (PDF).

Amazon Redshift will no longer support the use of Python UDFs after June 30, 2026. We will start enforcing it in phases. For more information on the details of Python end of life and migration options, see the blog post that was published on June 30, 2025.

Verifying that the correct files are present in your bucket

After you upload your files to your Amazon S3 bucket, we recommend listing the contents of the bucket to verify that all of the correct files are present and that no unwanted files are present. For example, if the bucket amzn-s3-demo-bucket holds a file named venue.txt.back, that file will be loaded, perhaps unintentionally, by the following command:

COPY venue FROM 's3://amzn-s3-demo-bucket/venue' … ;

If you want to control specifically which files are loaded, you can use a manifest file to explicitly list the data files. For more information about using a manifest file, see the copy_from_s3_manifest_file option for the COPY command and Example: COPY from Amazon S3 using a manifest in the COPY examples.

For more information about listing the contents of the bucket, see Listing Object Keys in the Amazon S3 Developer Guide.