From: | Bruce Momjian <pgman(at)candle(dot)pha(dot)pa(dot)us> |
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To: | Christopher Kings-Lynne <chriskl(at)familyhealth(dot)com(dot)au> |
Cc: | Hackers <pgsql-hackers(at)postgresql(dot)org> |
Subject: | Re: contrib idea |
Date: | 2001-12-21 04:03:53 |
Message-ID: | 200112210403.fBL43rH24599@candle.pha.pa.us |
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Lists: | pgsql-hackers |
> If you have a foreign key on a column, then whenever the primary key is
> modified, the following checks may occur:
>
> * Check to see if the child row exists (no action)
> * Delete the child row (cascade delete)
> * Update the child row (cascade update)
>
> All of which will benefit from an index...
OK, then perhaps we should be creating an index automatically? Folks?
--
Bruce Momjian | http://candle.pha.pa.us
pgman(at)candle(dot)pha(dot)pa(dot)us | (610) 853-3000
+ If your life is a hard drive, | 830 Blythe Avenue
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