hive 删除udf函数

 

https://community.cloudera.com/t5/Support-Questions/DROP-FUNCTION-IF-EXISTS-udf-fails-with-quot-function-udf/td-p/92001
https://docs.cloudera.com/documentation/enterprise/5-9-x/topics/impala_drop_function.html
https://community.cloudera.com/t5/Support-Questions/updating-hive-UDF-without-restarting-the-cluster/td-p/184062

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