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From "Bryan Pendleton (JIRA)" <derby-...@db.apache.org>
Subject [jira] Updated: (DERBY-1491) Provide ALTER TABLE functionality to change a column's default value
Date Sun, 16 Jul 2006 15:41:14 GMT
     [ http://issues.apache.org/jira/browse/DERBY-1491?page=all ]

Bryan Pendleton updated DERBY-1491:

    Attachment: alterColumnDefault1.diff

Attached is alterColumnDefault1.diff. This diff merges the db2AlterColumn() and columnAlterClause()
parsing routines in sqlgrammar.jj. Although this is a more complicated diff to the parser
than the first patch, I think it is preferable because this way all the column alterations
come through ALTER TABLE ALTER COLUMN, rather than trying to have both ALTER COLUMN and MODIFY

> Provide ALTER TABLE functionality to change a column's default value
> --------------------------------------------------------------------
>                 Key: DERBY-1491
>                 URL: http://issues.apache.org/jira/browse/DERBY-1491
>             Project: Derby
>          Issue Type: New Feature
>          Components: Documentation, SQL
>    Affects Versions:,,,,,,
>            Reporter: Bryan Pendleton
>         Assigned To: Bryan Pendleton
>         Attachments: alterColumnDefault1.diff, modifyDefault_1.diff
> Provide a way to alter the default value for an existing column in an existing table.
The syntax should probably some variant of the ALTER TABLE statement.

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