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https://issues.apache.org/jira/browse/SPARK-21318?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Apache Spark reassigned SPARK-21318:
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Assignee: (was: Apache Spark)
> The exception message thrown by `lookupFunction` is ambiguous.
> --------------------------------------------------------------
>
> Key: SPARK-21318
> URL: https://issues.apache.org/jira/browse/SPARK-21318
> Project: Spark
> Issue Type: Improvement
> Components: SQL
> Affects Versions: 2.0.0, 2.0.1, 2.0.2, 2.1.0, 2.1.1
> Reporter: StanZhai
> Priority: Minor
>
> The function actually exists in current selected database, 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}
> This is not conducive to positioning problems.
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