Re: SELECT constant; takes 15x longer on 9.0?

2010/4/6 Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>:
> "David E. Wheeler" <david(at)kineticode(dot)com> writes:
>> On Apr 6, 2010, at 11:15 AM, Tom Lane wrote:
>>> Huh.  I'm still curious, because in my test the overhead of those
>>> options seemed to be about 3x.  So there's still something considerably
>>> different between what you did and what I did.
>
>> Are you doing this on a Mac?
>
> I hadn't, but since you mention it: 100000 iterations take about 7.5sec
> with non-assert CVS HEAD and 15sec with asserts, on a 2008 Macbook Pro.
> Color me still confused.

it is little bit offtopic. Can we add info about assertation to
version() output?

like

postgres=# select version();
version

────────────────────────────────────────────────────────────────────────────────
───────────────────────────────
PostgreSQL 9.0alpha4 on i686-pc-linux-gnu, compiled by GCC gcc (GCC) 4.4.3 2010
0127 (Red Hat 4.4.3-4), 32-bit >>> with enabled assertation <<<<
(1 row)

Regards
Pavel Stehule
>
>                        regards, tom lane
>
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