John Sherman created HIVE-24645:
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Summary: UDF configure not called when fetch task conversion occurs
Key: HIVE-24645
URL: https://issues.apache.org/jira/browse/HIVE-24645
Project: Hive
Issue Type: Bug
Components: HiveServer2
Reporter: John Sherman
Assignee: John Sherman
When hive.fetch.task.conversion kicks in - UDF configure is not called.
This is likely due to MapredContext not being available when this conversion
occurs.
The approach I suggest is to create a dummy MapredContext and provide it with
the current configuration from ExprNodeGenericFuncEvaluator.
It is slightly unfortunate that the UDF API relies on MapredContext since some
aspects of the context do not apply to the variety of engines and invocation
paths for UDFs which makes it difficult to make a fully formed dummy object
such as the Reporter objects and the boolean around if it is a Map context.
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