Re: Re: csv format for psql

Pavel Stehule <pavel.stehule@gmail.com>

From: Pavel Stehule <pavel.stehule@gmail.com>
To: Daniel Verite <daniel@manitou-mail.org>
Cc: David Steele <david@pgmasters.net>, Fabien COELHO <coelho@cri.ensmp.fr>, PostgreSQL Hackers <pgsql-hackers@postgresql.org>
Date: 2018-03-22T15:57:30Z
Lists: pgsql-hackers
Hi

2018-03-22 16:30 GMT+01:00 Daniel Verite <daniel@manitou-mail.org>:

>         David Steele wrote:
>
> > Do you know when you'll have an updated patch that addresses the minor
> > issues brought up in review and the concern above?
>
> Here's an update addressing the issues discussed:
>
> - fieldsep and recordsep are used, no more fieldsep_csv
> - the command line option is --csv without short option and is equivalent
>  to -P format=csv -P fieldsep=','
> - pset output formats are reordered alphabetically on display
> - a couple more cases in the regression tests
>
>
I am sorry, I don't think so this design is correct. It introduce
dependency on arguments order

# correct output
[pavel@nemesis postgresql]$ psql --csv -c "table foo" -F ';'
a;b;c
1;2;Hello
3;4;Nazdar

# error -F is ignored
[pavel@nemesis postgresql]$ psql -F ';' --csv -c "table foo"
a,b,c
1,2,Hello
3,4,Nazdar

Using \pset format csv means overwriting field sep every time - nobody uses
|

I think so dependency on order of psql arguments is significant problem

Regards

Pavel





>
> Best regards,
> --
> Daniel Vérité
> PostgreSQL-powered mailer: http://www.manitou-mail.org
> Twitter: @DanielVerite
>

Commits

  1. Add CSV table output mode in psql.

  2. Reorganize format options of psql in alphabetical order

  3. Complete TODO item: