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Date: Sun, 12 Nov 2006 11:19:38 -0800 (PST)
From: "Yip Ng (JIRA)" <jira@apache.org>
To: derby-dev@db.apache.org
Subject: [jira] Assigned: (DERBY-2057)
 SYSCS_UTIL.SYSCS_INPLACE_COMPRESS_TABLE documentation or implementation
 error on its arguments.
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     [ http://issues.apache.org/jira/browse/DERBY-2057?page=all ]

Yip Ng reassigned DERBY-2057:
-----------------------------

    Assignee: Yip Ng

> SYSCS_UTIL.SYSCS_INPLACE_COMPRESS_TABLE documentation or implementation error on its arguments.
> -----------------------------------------------------------------------------------------------
>
>                 Key: DERBY-2057
>                 URL: http://issues.apache.org/jira/browse/DERBY-2057
>             Project: Derby
>          Issue Type: Bug
>          Components: Miscellaneous, Documentation, Javadoc
>    Affects Versions: 10.2.1.6, 10.3.0.0
>         Environment: Any
>            Reporter: Yip Ng
>         Assigned To: Yip Ng
>
> There seems to be an error on the SYSCS_UTIL.SYSCS_INPLACE_COMPRESS_TABLE documentation or the implementation itself when passing the following arguments:
> PURGE_ROWS
>     If PURGE_ROWS is set to a *non-zero* value, then a single pass is made through the table which will purge committed deleted rows from the table.
> <snip>
> DEFRAGMENT_ROWS
>     If DEFRAGMENT_ROWS is set to a *non-zero* value, then a single defragment pass is made which will move existing rows from the end of the table towards the front of the table.
> <snip>
> TRUNCATE_END
>     If TRUNCATE_END is set to a *non-zero* value, then all contiguous pages at the end of the table will be returned to the operating system.
> <snip>
> The implementation only checks if the above arguments are 1s.
> org.apache.derby.iapi.db.OnlineCompress.compressTable(
>             schema, 
>             tablename, 
>             (purgeRows == 1),
>             (defragementRows == 1),
>             (truncateEnd == 1));
> ...

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