| From: | Fujii Masao <masao(dot)fujii(at)gmail(dot)com> |
|---|---|
| To: | KONDO Mitsumasa <kondo(dot)mitsumasa(at)lab(dot)ntt(dot)co(dot)jp> |
| Cc: | Fabien COELHO <coelho(at)cri(dot)ensmp(dot)fr>, PostgreSQL-development <pgsql-hackers(at)postgresql(dot)org> |
| Subject: | Re: gaussian distribution pgbench |
| Date: | 2014-03-13 13:17:23 |
| Message-ID: | CAHGQGwHXwqoYp3GnABbm_yXsnRFTsAYHA2RMd278xF72wx3C_Q@mail.gmail.com |
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| Lists: | pgsql-hackers |
On Tue, Mar 11, 2014 at 1:49 PM, KONDO Mitsumasa
<kondo(dot)mitsumasa(at)lab(dot)ntt(dot)co(dot)jp> wrote:
> (2014/03/09 1:49), Fabien COELHO wrote:
>>
>>
>> Hello Mitsumasa-san,
>>
>>> New "\setrandom" interface is here.
>>> \setrandom var min max [gaussian threshold | exponential threshold]
>>
>>
>>> Attached patch realizes this interface, but it has little bit ugly
>>> codeing in
>>> executeStatement() and process_commands()..
>>
>>
>> I think it is not too bad. The "ignore extra arguments on the line" is a
>> little
>> pre-existing mess anyway.
>
> All right.
>
>
>>> What do you think?
>>
>>
>> I'm okay with this UI and its implementation.
>
> OK.
We should do the same discussion for the UI of command-line option?
The patch adds two options --gaussian and --exponential, but this UI
seems to be a bit inconsistent with the UI for \setrandom. Instead,
we can use something like --distribution=[uniform | gaussian | exponential].
Regards,
--
Fujii Masao
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