Harish Butani created HIVE-4130:
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Summary: Bring the Lead/Lag UDFs interface in line with Lead/Lag
UDAFs
Key: HIVE-4130
URL: https://issues.apache.org/jira/browse/HIVE-4130
Project: Hive
Issue Type: Bug
Components: PTF-Windowing
Reporter: Harish Butani
- support a default value arg
- both amt and defaultValue args can be optional
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