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Re: find foreign key name

From: Tore Halset <halset(at)pvv(dot)ntnu(dot)no>
To: pgsql-jdbc(at)postgresql(dot)org
Subject: Re: find foreign key name
Date: 2007-12-18 14:43:24
Message-ID: FAB1A373-17E8-4686-8CF5-682D014089EB@pvv.ntnu.no (view raw or flat)
Thread:
Lists: pgsql-jdbc
On Dec 18, 2007, at 10:36 , Heikki Linnakangas wrote:

> Tore Halset wrote:
>> I want to programatically drop a foreign key constraint via jdbc.  
>> How can I find the foreign key name for a PostgreSQL foreign key  
>> via jdbc? I know all about the related tables and columns, but not  
>> the name of the constraint.
>
> You can query the pg_constraint catalog table:
>
> http://www.postgresql.org/docs/8.2/interactive/catalog-pg-constraint.html
>
> There seems to be some example queries in the user comments that you  
> might be interested.

Thanks. I was hoping for something easy in  
DatabaseMetaData#getExportedKeys.. :) But looking at pg_constraint  
should work fine.

Regards,
  - Tore.


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