Ashish Sharma created HIVE-25333:
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Summary: Refactor Existing UDF
Key: HIVE-25333
URL: https://issues.apache.org/jira/browse/HIVE-25333
Project: Hive
Issue Type: Improvement
Reporter: Ashish Sharma
Description
Most of the UDF code is write in 2013 no changes has done after since in UDF.
Objective of this EPIC -
1. Refactor all existing UDF implementation from UDF.class to GenericUDF.class
2. Clean the up the code to reduce code duplication
DOD
Refactor all UDF
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