On Tue, 9 Sep 2003, Mindaugas Riauba wrote:

>   Hello,
>   I have small table (up to 10000 rows) and every row will be updated
> once per minute. Table also has "before update on each row" trigger
> written in plpgsql. But trigger 99.99% of the time will do nothing
> to the database. It will just compare old and new values in the row
> and those values almost always will be identical.

If the rows aren't going to actually change all that often, perhaps you 
could program your trigger to just silently drop the update, i.e. only 
change the rows that need updating and ignore the rest?  That should speed 
things up.  Unless I'm misunderstanding your needs here.

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