Github user ouyangxiaochen commented on the issue:
https://github.com/apache/spark/pull/17681
The synax of DBMS like this` CREATE OR REPLACE FUNCTION `, it means that if
function exists we will replace it, otherwise create one. But i think we'd
better not destroy the original permanent function in Spark.
The purpose of supporting this keyword is that user can choose a way to
avoid this exception `FunctionAlreadyExistsException` .
---
If your project is set up for it, you can reply to this email and have your
reply appear on GitHub as well. If your project does not have this feature
enabled and wishes so, or if the feature is enabled but not working, please
contact infrastructure at [email protected] or file a JIRA ticket
with INFRA.
---
---------------------------------------------------------------------
To unsubscribe, e-mail: [email protected]
For additional commands, e-mail: [email protected]
