On Thu, Feb 17, 2005, Hans Kristian Rosbach <[EMAIL PROTECTED]> said:

>> Off the cuff, I would take it to be that one UPDATE is faster than one
>> SELECT, but only up to a certain concurrency rate, after which the
>> non-locking SELECT is faster. Yes, no? Are there some statistics we can
>> put to this?
> 
> In any case an update cannot be cached, an select can.

But the select has a function in it, and necessarily only runs while the
database is being written to, so the cache is likely to be expired.

>> This smacks of needing a configuration option so that a site can use the
>> method best for their own usage pattern.
> 
> As long as the defaults are sane enough for the average joe, not just
> us expert users.

Where Mr. Expert is much more likely to be running a large site than Joe
is, and therefore should be comfortable tuning things to work on such a
site.

Aaron

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