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Posted to torque-dev@db.apache.org by "Thomas Fischer (JIRA)" <ji...@apache.org> on 2006/07/17 11:56:14 UTC
[jira] Commented: (TORQUE-45) Generated SQL is in wrong order when
dropping tables on table re-creation
[ http://issues.apache.org/jira/browse/TORQUE-45?page=comments#action_12421566 ]
Thomas Fischer commented on TORQUE-45:
--------------------------------------
There is no "correct order" for all possible constellations. Consider e.g. a circular reference: Table A references B , and B references A.
> Generated SQL is in wrong order when dropping tables on table re-creation
> -------------------------------------------------------------------------
>
> Key: TORQUE-45
> URL: http://issues.apache.org/jira/browse/TORQUE-45
> Project: Torque
> Issue Type: Bug
> Components: Generator
> Affects Versions: 3.2, 3.1.1
> Environment: java 1.4.2, 1.5. Solaris 10.
> Reporter: Joe Carter
>
> When the table creation SQL is re-run when the schema contains foreign keys, you will get referential integrity complaints.
> This is because the table drop order means that it tries to drop dependent tables first.
> To fix this, the drop statements should be before all the creates. They should also be in reverse order to the creates.
> A method to be able to obtain the tables in reverse order will be needed to allow the templates to be modified to fix this.
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