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From "Hudson (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HIVE-4209) Cache evaluation result of deterministic expression and reuse it
Date Thu, 09 May 2013 23:32:14 GMT

    [ https://issues.apache.org/jira/browse/HIVE-4209?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13653381#comment-13653381
] 

Hudson commented on HIVE-4209:
------------------------------

Integrated in Hive-trunk-h0.21 #2094 (See [https://builds.apache.org/job/Hive-trunk-h0.21/2094/])
    HIVE-4209 Cache evaluation result of deterministic expression and reuse it (Navis via
namit) (Revision 1480597)

     Result = FAILURE
navis : http://svn.apache.org/viewcvs.cgi/?root=Apache-SVN&view=rev&rev=1480597
Files : 
* /hive/trunk/common/src/java/org/apache/hadoop/hive/conf/HiveConf.java
* /hive/trunk/conf/hive-default.xml.template
* /hive/trunk/ql/src/java/org/apache/hadoop/hive/ql/exec/ExprNodeColumnEvaluator.java
* /hive/trunk/ql/src/java/org/apache/hadoop/hive/ql/exec/ExprNodeConstantEvaluator.java
* /hive/trunk/ql/src/java/org/apache/hadoop/hive/ql/exec/ExprNodeEvaluator.java
* /hive/trunk/ql/src/java/org/apache/hadoop/hive/ql/exec/ExprNodeEvaluatorFactory.java
* /hive/trunk/ql/src/java/org/apache/hadoop/hive/ql/exec/ExprNodeEvaluatorHead.java
* /hive/trunk/ql/src/java/org/apache/hadoop/hive/ql/exec/ExprNodeEvaluatorRef.java
* /hive/trunk/ql/src/java/org/apache/hadoop/hive/ql/exec/ExprNodeFieldEvaluator.java
* /hive/trunk/ql/src/java/org/apache/hadoop/hive/ql/exec/ExprNodeGenericFuncEvaluator.java
* /hive/trunk/ql/src/java/org/apache/hadoop/hive/ql/exec/ExprNodeNullEvaluator.java
* /hive/trunk/ql/src/java/org/apache/hadoop/hive/ql/exec/FilterOperator.java
* /hive/trunk/ql/src/java/org/apache/hadoop/hive/ql/exec/JoinUtil.java
* /hive/trunk/ql/src/java/org/apache/hadoop/hive/ql/exec/SelectOperator.java
* /hive/trunk/ql/src/java/org/apache/hadoop/hive/ql/udf/generic/GenericUDF.java

                
> Cache evaluation result of deterministic expression and reuse it
> ----------------------------------------------------------------
>
>                 Key: HIVE-4209
>                 URL: https://issues.apache.org/jira/browse/HIVE-4209
>             Project: Hive
>          Issue Type: Improvement
>          Components: Query Processor
>            Reporter: Navis
>            Assignee: Navis
>            Priority: Minor
>             Fix For: 0.12.0
>
>         Attachments: HIVE-4209.6.patch.txt, HIVE-4209.D9585.1.patch, HIVE-4209.D9585.2.patch,
HIVE-4209.D9585.3.patch, HIVE-4209.D9585.4.patch, HIVE-4209.D9585.5.patch
>
>
> For example, 
> {noformat}
> select key from src where key + 1 > 100 AND key + 1 < 200 limit 3;
> {noformat}
> key + 1 need not to be evaluated twice.

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