Re: gaussian distribution pgbench

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От Fujii Masao
Тема Re: gaussian distribution pgbench
Дата
Msg-id CAHGQGwHXwqoYp3GnABbm_yXsnRFTsAYHA2RMd278xF72wx3C_Q@mail.gmail.com
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Ответ на Re: gaussian distribution pgbench  (KONDO Mitsumasa <kondo.mitsumasa@lab.ntt.co.jp>)
Ответы Re: gaussian distribution pgbench  (Heikki Linnakangas <hlinnakangas@vmware.com>)
Re: gaussian distribution pgbench  (Fabien COELHO <coelho@cri.ensmp.fr>)
Список pgsql-hackers
On Tue, Mar 11, 2014 at 1:49 PM, KONDO Mitsumasa
<kondo.mitsumasa@lab.ntt.co.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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