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From "John Sichi (JIRA)" <j...@apache.org>
Subject [jira] Commented: (HIVE-1683) Column aliases cannot be used in a group by clause
Date Fri, 01 Oct 2010 17:24:34 GMT

    [ https://issues.apache.org/jira/browse/HIVE-1683?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12916960#action_12916960
] 

John Sichi commented on HIVE-1683:
----------------------------------

This is not a bug and should be closed as invalid.  Conceptually, GROUP BY processing happens
before SELECT list computation, so it would be circular to allow such references.

> Column aliases cannot be used in a group by clause
> --------------------------------------------------
>
>                 Key: HIVE-1683
>                 URL: https://issues.apache.org/jira/browse/HIVE-1683
>             Project: Hadoop Hive
>          Issue Type: Bug
>          Components: Metastore
>            Reporter: Shrikrishna Lawande
>
> Column aliases cannot be used in a group by clause
> Following query would fail :
> select col1 as t, count(col2) from test group by t;
> FAILED: Error in semantic analysis: line 1:49 Invalid Table Alias or Column Reference
t

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