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Date: Thu, 2 Apr 2009 18:01:14 -0700 (PDT)
From: "Kathey Marsden (JIRA)" <jira@apache.org>
To: derby-dev@db.apache.org
Subject: [jira] Commented: (DERBY-1062) Change the internal implemetation of
 SYSCS_INPLACE_COMPRESS_TABLE to share existing alter table
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    [ https://issues.apache.org/jira/browse/DERBY-1062?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12695199#action_12695199 ] 

Kathey Marsden commented on DERBY-1062:
---------------------------------------

I think we could also file an Improvement issue to improve the error message.
ERROR 42Y55: 'ALTER TABLE' cannot be performed on 'SYSCS_DIAG.SPACE_TABLE' because it does not exist.  when the user called SYSCS_INPLACE_COMPRESS_TABLE is a little confusing.

of course that would mean changing the message again or perhaps changing it back to the previous less specific but sufficiently informative: ERROR 42X05: Table/View SYSCS_DIAG.SPACE_TABLE  does not exist.

> Change the internal implemetation of SYSCS_INPLACE_COMPRESS_TABLE to share existing alter table
> -----------------------------------------------------------------------------------------------
>
>                 Key: DERBY-1062
>                 URL: https://issues.apache.org/jira/browse/DERBY-1062
>             Project: Derby
>          Issue Type: Improvement
>          Components: Newcomer, SQL, Store
>    Affects Versions: 10.1.3.1
>            Reporter: Mike Matrigali
>            Assignee: Mamta A. Satoor
>            Priority: Minor
>             Fix For: 10.5.0.0
>
>         Attachments: d1062-escape.diff, d1062-escape.diff
>
>
>  Change the internal implemetation of SYSCS_INPLACE_COMPRESS_TABLE to share existing alter table
> code. One suggested approach is to use the same mechanism as SYSCS_COMPRESS_TABLE. Such
> an implementation would involve:
> o change the parser for alter table to accecpt some internal only syntax for SYSCS_INPLACE_COMPRESS_TABLE
> o change the alter table constant action to get the required information for inplace compress
> o move most of the inplace compress driving code to a routine in alter table execution, following the same
>      coding pattern as existing alter table compress.
> I believe doing this will have multiple benefits:
> 1) shares existing alter table code, so things like error checking, security management, ... is all done by one piece of code
> 2) by sharing the code I believe the following outstanding JIRA issues will be addressed: DERBY-719, DERBY-720 -
> 3) future changes addressing ddl like grant/revoke will automatically work.

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