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From "Hive QA (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HIVE-3107) Improve semantic analyzer to better handle column name references in group by/sort by clauses
Date Fri, 15 Nov 2013 17:49:21 GMT

    [ https://issues.apache.org/jira/browse/HIVE-3107?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13823852#comment-13823852
] 

Hive QA commented on HIVE-3107:
-------------------------------



{color:green}Overall{color}: +1 all checks pass

Here are the results of testing the latest attachment:
https://issues.apache.org/jira/secure/attachment/12613898/HIVE-3107.3.patch

{color:green}SUCCESS:{color} +1 4614 tests passed

Test results: http://bigtop01.cloudera.org:8080/job/PreCommit-HIVE-Build/300/testReport
Console output: http://bigtop01.cloudera.org:8080/job/PreCommit-HIVE-Build/300/console

Messages:
{noformat}
Executing org.apache.hive.ptest.execution.PrepPhase
Executing org.apache.hive.ptest.execution.ExecutionPhase
Executing org.apache.hive.ptest.execution.ReportingPhase
{noformat}

This message is automatically generated.

ATTACHMENT ID: 12613898

> Improve semantic analyzer to better handle column name references in group by/sort by
clauses
> ---------------------------------------------------------------------------------------------
>
>                 Key: HIVE-3107
>                 URL: https://issues.apache.org/jira/browse/HIVE-3107
>             Project: Hive
>          Issue Type: Improvement
>          Components: Query Processor
>    Affects Versions: 0.9.0, 0.10.0, 0.11.0, 0.12.0
>            Reporter: Richard Ding
>            Assignee: Harish Butani
>         Attachments: HIVE-3107.1.patch, HIVE-3107.2.patch, HIVE-3107.3.patch
>
>
> This is related to HIVE-1922.
> Following queries all fail with various SemanticExceptions:
> {code}
> explain select t.c from t group by c;
> explain select t.c from t group by c sort by t.c; 
> explain select t.c as c0 from t group by c0;
> explain select t.c from t group by t.c sort by t.c; 
> {code}
> It is true that one could always find a version of any of above queries that works. But
one has to try to find out and it doesn't work well with machine generated SQL queries.



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