[jira] Updated: (DERBY-1909) ALTER TABLE DROP COLUMN needs to update GRANTed column privileges

["Bryan Pendleton (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/DERBY-1909?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Bryan Pendleton updated DERBY-1909:
-----------------------------------

    Attachment: rewrite_syscolperms_v3.diff

Attached is rewrite_syscolperms_v3.diff. This patch is up to date with the head of trunk, and includes the change to EmptyDictionary.java (thanks Andrew!).

I intend to commit this patch, unless I find any problems in my last re-run of derbyall & suites.All.

If there are any review comments, please let me know.


> ALTER TABLE DROP COLUMN needs to update GRANTed column privileges
> -----------------------------------------------------------------
>
>                 Key: DERBY-1909
>                 URL: https://issues.apache.org/jira/browse/DERBY-1909
>             Project: Derby
>          Issue Type: Bug
>          Components: SQL
>    Affects Versions: 10.3.0.0
>            Reporter: Bryan Pendleton
>         Assigned To: Bryan Pendleton
>         Attachments: d1909_partial_incomplete.diff, repro.sql, rewrite_syscolperms_v1.diff, rewrite_syscolperms_v1.stat, rewrite_syscolperms_v2.diff, rewrite_syscolperms_v3.diff
>
>
> When ALTER TABLE DROP COLUMN is used to drop a column from a table, it needs to update the GRANTed column privileges on that table.
> The following behaviors need to be provided:
> - DROP COLUMN needs to automatically revoke any privileges which have been granted on this column
> - Privileges which have been granted on other columns in this table need to be adjusted due to changed column position numbers
> When this problem is fixed, the following additional cleanup steps should occur:
> - The check that disables DROP COLUMN in sqlAuthorization mode needs to be removed
> - There is a comment in AlterTableConstantAction that needs to be revised
> - The tests in lang/altertableDropColumn.sql should be moved into altertable.sql
> - altertableDropColumn.sql and altertableDropColumn.out should be deleted
> Search for this JIRA issue number in the code to find the relevant places to change.

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