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From "Shinichi Yamashita (Commented) (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (SQOOP-387) Use TRUNCATE for PostgreSQLManager
Date Sun, 18 Mar 2012 11:42:41 GMT

    [ https://issues.apache.org/jira/browse/SQOOP-387?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13232259#comment-13232259
] 

Shinichi Yamashita commented on SQOOP-387:
------------------------------------------

Hi,

I forgot to tell that TRUNCATE of PostgreSQL did not return a value such as DELETE to you.
Therefore I think that I apply the patch which I attached first and use it.
If a count of the number of deletion is necessary, I want to make modifications to count it
with the first patch.

Regards,
Shinichi
                
> Use TRUNCATE for PostgreSQLManager
> ----------------------------------
>
>                 Key: SQOOP-387
>                 URL: https://issues.apache.org/jira/browse/SQOOP-387
>             Project: Sqoop
>          Issue Type: Improvement
>          Components: connectors/postgresql
>            Reporter: Shinichi Yamashita
>         Attachments: SQOOP-387.patch
>
>
> PostgreSQLManager uses "DELETE" sentence for procesing in staging-table.
> When it does "EXPORT" many times, the processing time is prolonged in "DELETE".
> Therefore replace it with "TRUNCATE" sentence and improve performance.

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