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From "Carl Steinbach (JIRA)" <j...@apache.org>
Subject [jira] Commented: (HIVE-1546) Ability to plug custom Semantic Analyzers for Hive Grammar
Date Thu, 02 Sep 2010 05:34:54 GMT

    [ https://issues.apache.org/jira/browse/HIVE-1546?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12905411#action_12905411
] 

Carl Steinbach commented on HIVE-1546:
--------------------------------------

@ John: Good to know, but what's the motivation for this change? Was is it covered in the
back-channel discussions you mentioned above? And is making SemanticAnalyzer a public API
really a good idea?

> 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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