From: | Aleksander Alekseev <a(dot)alekseev(at)postgrespro(dot)ru> |
---|---|
To: | Pavel Stehule <pavel(dot)stehule(at)gmail(dot)com> |
Cc: | PostgreSQL Hackers <pgsql-hackers(at)postgresql(dot)org> |
Subject: | Re: proposal: psql command \graw |
Date: | 2017-08-22 08:36:52 |
Message-ID: | 20170822083652.GA1990@e733.localdomain |
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Lists: | pgsql-hackers |
Hi Pavel,
> I am thinking about printing graphs in psql (mainly some histograms). I
> found so gnuplot is able do very good graphs in console. The one issue is
> user friendly (with less steps) generating data in good format for this
> application.
>
> One my idea is introduction new simple output format and execution command
> with result in this format.
>
> It should work something like
>
> \setenv GNUPLOT_OPTION '......'
>
> SELECT * FROM data
>
> \graw | gnuplot ...
>
> It can be used for any other applications R, ggplot, ..
>
> Ideas, comments?
Sounds cool. On the other hand, I think it's kind of too domain specific
task. So I wonder whether it could be generalized somehow so anyone
could write an extension that would export data in any format in a
friendly way.
For instance:
create extension export_to_gnuplot;
select * from data
\export_to_gnuplot | gnuplot ...
--
Best regards,
Aleksander Alekseev
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