Github user maropu commented on the pull request:
https://github.com/apache/spark/pull/5383#issuecomment-91172886
I found one issue; the current implementation of HiveGenericUdtf always
calls `terminate()` though, it does not call `initialize()` in some cases
because of lazy initialization.
```
protected lazy val outputInspector =
function.initialize(inputInspectors.toArray)
```
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