Re: 7.2 cvs: explain analyze instabilities

Tom Lane <tgl@sss.pgh.pa.us>

From: Tom Lane <tgl@sss.pgh.pa.us>
To: Oleg Bartunov <oleg@sai.msu.su>
Cc: Pgsql Hackers <pgsql-hackers@postgresql.org>
Date: 2001-12-14T15:24:46Z
Lists: pgsql-hackers
Oleg Bartunov <oleg@sai.msu.su> writes:
> My question: does it normal that output of 'explain analyze' is unstable
> even if nothing was changed.

Certainly.  Buffering issues alone would cause actual runtime of a first
run to vary from subsequent runs.

			regards, tom lane