Mohammad Kamrul Islam created HIVE-5731:
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Summary: Use new GenericUDF instead of basic UDF for UDFDate*
classes
Key: HIVE-5731
URL: https://issues.apache.org/jira/browse/HIVE-5731
Project: Hive
Issue Type: Improvement
Reporter: Mohammad Kamrul Islam
GenericUDF class is the latest and recommended base class for any UDFs.
This JIRA is to change the current UDFDate* classes extended from GenericUDF.
The general benefit of GenericUDF is described in comments as
"* The GenericUDF are superior to normal UDFs in the following ways: 1. It can
accept arguments of complex types, and return complex types. 2. It can
accept
variable length of arguments. 3. It can accept an infinite number of
function
signature - for example, it's easy to write a GenericUDF that accepts
array<int>, array<array<int>> and so on (arbitrary levels of nesting). 4. It
can do short-circuit evaluations using DeferedObject."
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