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From "Mike Matrigali (JIRA)" <j...@apache.org>
Subject [jira] Updated: (DERBY-4256) allow alter table to increase the maximum size of a blob and a clob.
Date Wed, 03 Jun 2009 21:00:07 GMT

     [ https://issues.apache.org/jira/browse/DERBY-4256?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel

Mike Matrigali updated DERBY-4256:

go ahead and ignore my comments about parser, it was not based on reading the code.  I am
sure about the
store part of my comments that it is safe to just go ahead and change the catalogs and not
have to do anything
to the data.

.  Bryan has the 
experience in this area.  I was just thinking that it was going to add syntax and did not
realize that datatype
part of the syntax would not need parser changes, but it looks like the part that
handles different datatypes does not really need parser changes.  The called routines can
handle many
different datatypes.   

> allow alter table to increase the maximum size of a blob and a clob.
> --------------------------------------------------------------------
>                 Key: DERBY-4256
>                 URL: https://issues.apache.org/jira/browse/DERBY-4256
>             Project: Derby
>          Issue Type: New Feature
>    Affects Versions:
>            Reporter: Mike Matrigali
>            Assignee: Eranda Sooriyabandara
>            Priority: Minor
> Allow new syntax that allows user to alter the maximum length of a blob and/or clob column:
> ALTER TABLE binarydata ALTER COLUMN data SET DATA TYPE blob(128M)
> The syntax should match up with the existing functionality to increase the size of varchar

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