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From "Hudson (Commented) (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HIVE-2506) Get ConstantObjectInspectors working in UDAFs
Date Tue, 18 Oct 2011 11:58:10 GMT

    [ https://issues.apache.org/jira/browse/HIVE-2506?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13129681#comment-13129681
] 

Hudson commented on HIVE-2506:
------------------------------

Integrated in Hive-trunk-h0.21 #1017 (See [https://builds.apache.org/job/Hive-trunk-h0.21/1017/])
    HIVE-2506. Get ConstantObjectInspectors working in UDAFs
(Jonathan Chang via jvs)

jvs : http://svn.apache.org/viewcvs.cgi/?root=Apache-SVN&view=rev&rev=1185511
Files : 
* /hive/trunk/ql/src/java/org/apache/hadoop/hive/ql/exec/FunctionRegistry.java
* /hive/trunk/ql/src/java/org/apache/hadoop/hive/ql/optimizer/index/RewriteQueryUsingAggregateIndex.java
* /hive/trunk/ql/src/java/org/apache/hadoop/hive/ql/parse/SemanticAnalyzer.java
* /hive/trunk/ql/src/java/org/apache/hadoop/hive/ql/udf/generic/AbstractGenericUDAFResolver.java
* /hive/trunk/ql/src/java/org/apache/hadoop/hive/ql/udf/generic/GenericUDAFParameterInfo.java
* /hive/trunk/ql/src/java/org/apache/hadoop/hive/ql/udf/generic/GenericUDAFPercentileApprox.java
* /hive/trunk/ql/src/java/org/apache/hadoop/hive/ql/udf/generic/SimpleGenericUDAFParameterInfo.java

                
> Get ConstantObjectInspectors working in UDAFs
> ---------------------------------------------
>
>                 Key: HIVE-2506
>                 URL: https://issues.apache.org/jira/browse/HIVE-2506
>             Project: Hive
>          Issue Type: Improvement
>            Reporter: Jonathan Chang
>            Assignee: Jonathan Chang
>             Fix For: 0.9.0
>
>         Attachments: HIVE-2506.patch, HIVE-2506.patch.2, HIVE-2506.patch.3
>
>
> 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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