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From: GodenYao <git@git.apache.org>
To: dev@hawq.incubator.apache.org
Reply-To: dev@hawq.incubator.apache.org
References: <git-pr-679-incubator-hawq@git.apache.org>
In-Reply-To: <git-pr-679-incubator-hawq@git.apache.org>
Subject: [GitHub] incubator-hawq pull request: HAWQ-760. Add hawq register to support register...
Content-Type: text/plain
Message-Id: <20160531190659.9CEDBDFB74@git1-us-west.apache.org>
Date: Tue, 31 May 2016 19:06:59 +0000 (UTC)
archived-at: Tue, 31 May 2016 19:07:05 -0000

Github user GodenYao commented on the pull request:

    https://github.com/apache/incubator-hawq/pull/679
  
    I'm aware of grammar of external web table from GPDB.
    Here's an example:
    ```
    =# CREATE EXTERNAL WEB TABLE output (output text)
        EXECUTE 'PATH=/home/gpadmin/programs; export PATH; myprogram.sh' 
        FORMAT 'TEXT';
    ```
    
    However, your implementation requires creating a native table first - which is not falling into create external web table DDL at all.
    
    Then user needs to run cmdline tool to **register** a new path of the file which would swap the original paq file created by the original DDL.


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