Jason Dere created HIVE-13586:
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Summary: Allow UDFs/UDTFs to indicate whether they can run with
fetch task conversion
Key: HIVE-13586
URL: https://issues.apache.org/jira/browse/HIVE-13586
Project: Hive
Issue Type: Bug
Components: UDF
Reporter: Jason Dere
Assignee: Jason Dere
Some UDFs/UDTFs cannot run properly with fetch task conversion.
For UDFs:
- The UDF may be depending on files/archives added to the distributed cache,
which may not be available in the local fetch task.
- The UDF may be depending on GenericUDF.configure() to be called - this is not
called for locally run UDFs.
For UDTFs, one issue is HIVE-11892.
A bit of a workaround, but for such UDFs/UDTFs we can have a flag to indicate
whether the UDF should be allowed to run in a local fetch task.
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