This documentation has been retired and might not be updated. The product, service, or technology mentioned in this content is no longer supported. See DROP FUNCTION.
DROP [TEMPORARY] FUNCTION [IF EXISTS] [db_name.]function_name
Drop an existing function. If the function to drop does not exist, an exception is thrown.
This command is supported only when Hive support is enabled.
Whether to function to drop is a temporary function.
If the function to drop does not exist, nothing happens.