| From: | David Fetter <david(at)fetter(dot)org> |
|---|---|
| To: | Andy Chambers <achambers(at)mcna(dot)net> |
| Cc: | "Postgresql (General)" <pgsql-general(at)postgresql(dot)org> |
| Subject: | Re: Table inheritance foreign key problem |
| Date: | 2010-12-22 17:20:53 |
| Message-ID: | 20101222172053.GB16815@fetter.org |
| Views: | Whole Thread | Raw Message | Download mbox | Resend email |
| Thread: | |
| Lists: | pgsql-general |
On Wed, Dec 22, 2010 at 12:32:44AM -0500, Andy Chambers wrote:
> Hi,
>
> One of the caveats described in the documentation for table
> inheritance is that foreign key constraints cannot cover the case
> where you want to check that a value is found somewhere in a table
> or in that table's descendants. It says there is no "good"
> workaround for this.
For some values of, "good," there actually is.
http://people.planetpostgresql.org/dfetter/index.php?/archives/51-Partitioning-Is-Such-Sweet-Sorrow.html
http://people.planetpostgresql.org/dfetter/index.php?/archives/59-Partitioning-Glances.html
Cheers,
David (hoping PostgreSQL will be able to infer how to automate this some day).
--
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