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Date: Thu, 2 Sep 2010 18:38:33 -0400 (EDT)
From: "John Sichi (JIRA)" <jira@apache.org>
To: hive-dev@hadoop.apache.org
Subject: [jira] Commented: (HIVE-1546) Ability to plug custom Semantic
 Analyzers for Hive Grammar
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    [ https://issues.apache.org/jira/browse/HIVE-1546?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12905706#action_12905706 ] 

John Sichi commented on HIVE-1546:
----------------------------------

That's fine with me if it doesn't drag in unrelated dependencies.  I would vote for contrib, with the plugin mechanism remaining the same as Ashutosh has defined it, but with the config parameter explicitly defining it as intended for internal use only for now.

Ashutosh, could you run this proposal by the Howl team and see if that is acceptable?


> Ability to plug custom Semantic Analyzers for Hive Grammar
> ----------------------------------------------------------
>
>                 Key: HIVE-1546
>                 URL: https://issues.apache.org/jira/browse/HIVE-1546
>             Project: Hadoop Hive
>          Issue Type: Improvement
>          Components: Metastore
>    Affects Versions: 0.7.0
>            Reporter: Ashutosh Chauhan
>            Assignee: Ashutosh Chauhan
>             Fix For: 0.7.0
>
>         Attachments: hive-1546-3.patch, hive-1546-4.patch, hive-1546.patch, hive-1546_2.patch
>
>
> It will be useful if Semantic Analysis phase is made pluggable such that other projects can do custom analysis of hive queries before doing metastore operations on them. 

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