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From "John Sichi (Commented) (JIRA)" <>
Subject [jira] [Commented] (HIVE-2506) Get ConstantObjectInspectors working in UDAFs
Date Mon, 17 Oct 2011 21:09:11 GMT


John Sichi commented on HIVE-2506:

I got a compilation error, so you probably haven't rebased recently:

    [javac] /data/users/jsichi/open/test-trunk/ql/src/java/org/apache/hadoop/hive/ql/optimizer/index/
in org.apache.hadoop.hive.ql.exec.FunctionRegistry cannot be applied to (java.lang.String,java.util.List<org.apache.hadoop.hive.serde2.typeinfo.TypeInfo>,boolean,boolean)
    [javac]             GenericUDAFEvaluator evaluator = FunctionRegistry.getGenericUDAFEvaluator(

> Get ConstantObjectInspectors working in UDAFs
> ---------------------------------------------
>                 Key: HIVE-2506
>                 URL:
>             Project: Hive
>          Issue Type: Improvement
>            Reporter: Jonathan Chang
>            Assignee: Jonathan Chang
>         Attachments: HIVE-2506.patch, HIVE-2506.patch.2
> ConstantObjectInspectors seem to do the right thing for UDFs, but don't work yet for
UDAFs, in part of the complex getEvaluator path which converts back and forth between TypeInfo
and ObjectInspectors.  We should add an interface so that UDAFs can operate entirely on ObjectInspectors
and expose constantness to these UDAFs.

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