Hive
  1. Hive
  2. HIVE-45

Hive: GenericUDF and support of complex object

    Details

    • Type: Bug Bug
    • Status: Closed
    • Priority: Major Major
    • Resolution: Fixed
    • Affects Version/s: None
    • Fix Version/s: 0.4.0
    • Component/s: Query Processor
    • Labels:
      None

      Description

      GenericUDF are more powerful than UDF 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.

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            People

            • Assignee:
              Zheng Shao
              Reporter:
              Zheng Shao
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              Dates

              • Created:
                Updated:
                Resolved:

                Development