Richard Huxton <[EMAIL PROTECTED]> writes:
> Anony Mous wrote:
>> select count(*) from pg_stat_activity 

> Do you have multiple live connections? My understanding of 
> pg_stat_activity is that it can lag slightly behind the current state of 
> the system.

If memory serves, it's up to 500 msec behind.  So this technique has
never been 100% accurate.  I'm not sure why A.Mous failed to observe the
inaccuracy before ...

                        regards, tom lane

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