StanZhai created SPARK-21318:
--------------------------------
Summary: The exception message thrown by `lookupFunction` is
ambiguous.
Key: SPARK-21318
URL: https://issues.apache.org/jira/browse/SPARK-21318
Project: Spark
Issue Type: Bug
Components: SQL
Affects Versions: 2.1.1, 2.1.0, 2.0.2, 2.0.1, 2.0.0
Reporter: StanZhai
Priority: Minor
The function actually exists, but the exception message is:
{code}
This function is neither a registered temporary function nor a permanent
function registered in the database 'default'.
{code}
My UDF has already been registered in the current database. But it's failed to
init during lookupFunction.
The exception message should be:
{code}
No handler for Hive UDF 'site.stanzhai.UDAFXXX':
org.apache.hadoop.hive.ql.exec.UDFArgumentLengthException: Two arguments is
expected
{code}
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