Re: Update on tables when the row doesn't change

I'm sure I'm not the only one, but, what are you talking about? RULEs
are not really obvious so it would help if you could post an example of
what you mean...

Have a nice day,

On Tue, May 24, 2005 at 05:05:34PM +0200, Sebastian Böck wrote:
> Hi all,
> 
> maybe it's a very silly question, but why does Postgres perform an 
> update on the table even if no data changes?
> 
> I recognized this recently doing a rewrite of my rules because they 
> took to long. I had many conditional rules I collapsed to one 
> unconditional rule, so that the views get constructed only once. If I 
> split these updates to the underlying tables, I get a lot of updates 
> which don't perform any "real" updates.
> 
> Can I circumvent this behaviour of Postgres only by defining lot of 
> rules / triggers on these underlying table are there some trickier ways?
> 
> Any help appreciated,
> 
> Sebastian
> 
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