Re: 8.2 and 8.3 postgresql.conf oddity

From: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
To: "Guillaume Smet" <guillaume(dot)smet(at)gmail(dot)com>
Cc: pgsql-bugs <pgsql-bugs(at)postgresql(dot)org>
Subject: Re: 8.2 and 8.3 postgresql.conf oddity
Date: 2008-01-23 15:22:11
Message-ID: 20455.1201101731@sss.pgh.pa.us
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"Guillaume Smet" <guillaume(dot)smet(at)gmail(dot)com> writes:
> #seq_page_cost = 1.0 # measured on an arbitrary scale
> #random_page_cost = 4 # same scale as above
> #cpu_tuple_cost = 0.01 # same scale as above
> #cpu_index_tuple_cost = 0.005 # same scale as above
> #cpu_operator_cost = 0.0025 # same scale as above

> The "same scale as above" while we have an "arbitrary scale" on the
> first line is a bit weird.

What do you find odd about it? Whatever scale you choose to think these
values are in, they all have to be on the same scale.

regards, tom lane

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