Csaba Ringhofer created IMPALA-10671:
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Summary: Add a way to override Hive UDFs with native ones with the
same name
Key: IMPALA-10671
URL: https://issues.apache.org/jira/browse/IMPALA-10671
Project: IMPALA
Issue Type: Improvement
Components: Frontend
Reporter: Csaba Ringhofer
This would be very useful in one specific use case:
if a view is used by both Hive and Impala then all the non-builtin functions it
uses have to be Hive UDFs. It would be nice to add the possibility to write a
native version too and if Impala would automatically prefer that.
A possible implementation is to choose a prefix like __impala_, and when
loading UDFs these prefixis would be removed and __impala_funname() would be
preferred over funname()
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