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From "Thomas Dudziak (JIRA)" <j...@apache.org>
Subject [jira] Resolved: (DDLUTILS-106) Long similar foreign key names are shortened to conflicting names
Date Fri, 12 May 2006 21:45:08 GMT
     [ http://issues.apache.org/jira/browse/DDLUTILS-106?page=all ]
     
Thomas Dudziak resolved DDLUTILS-106:
-------------------------------------

    Resolution: Won't Fix

Adding any checks against other foreign keys in the same model would mean introducing a lot
of changes to the public API because foreign key names are used in a lot of places where only
the table of the foreign key is available, but not the model. Since the benefit of such a
check is IMO only minor, I'll rather add a warning when a foreign key without a name is encountered.

> Long similar foreign key names are shortened to conflicting names
> -----------------------------------------------------------------
>
>          Key: DDLUTILS-106
>          URL: http://issues.apache.org/jira/browse/DDLUTILS-106
>      Project: DdlUtils
>         Type: Bug

>   Components: Core
>     Reporter: Christoffer Hammarström
>     Assignee: Thomas Dudziak

>
> In my generated sql for Oracle, i find the following two conflicting statements:
> ALTER TABLE doc_permission_sets
>     ADD CONSTRAINT doc_permission_ermission_sets FOREIGN KEY (set_id) REFERENCES permission_sets
(set_id);
> and 
> ALTER TABLE doc_permission_sets_ex
>     ADD CONSTRAINT doc_permission_ermission_sets FOREIGN KEY (set_id) REFERENCES permission_sets
(set_id);
> The tables have similar names, and the foreign key names conflict.
> Oracle gives the following error when trying to run the sql:
>  ORA-02264: name already used by an existing constraint
> Maybe SqlBuilder.shortenName() could use some kind of counter for conflicting names?

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