The deprecated CREATE_VIEW transform is still generated as part of the Java SDK pipeline construction but not as part of the Python SDK. We had previously removed support for the transform in the Portable FlinkRunner because end-to-end tests were only run with Python. Since the Java SDK still generates the transform we've re-added support for it but would like to eventually get it removed.
This issue tracks removal of the transform from the Runner API. The transform can stay in the non-portable Runner pipeline translation.