Re: How much expensive are row level statistics?

Michael Fuhr <mike@fuhr.org> writes:
> Does the backend support, or could it be easily modified to support,
> a mechanism that would post the command string after a configurable
> amount of time had expired, and then continue processing the query?

Not really, unless you want to add the overhead of setting a timer
interrupt for every query.  Which is sort of counterproductive when
the motivation is to reduce overhead ...

(It might be more or less free if you have statement_timeout set, since
there would be a setitimer call anyway.  But I don't think that's the
norm.)

            regards, tom lane