Re: proposal \gcsv

From: Erik Rijkers <er(at)xs4all(dot)nl>
To: Pavel Stehule <pavel(dot)stehule(at)gmail(dot)com>
Cc: Vik Fearing <vik(at)postgresfriends(dot)org>, PostgreSQL Hackers <pgsql-hackers(at)postgresql(dot)org>
Subject: Re: proposal \gcsv
Date: 2020-03-26 18:41:45
Message-ID: 50f6629d738fa4861c7e29e391fd9569@xs4all.nl
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On 2020-03-26 18:49, Pavel Stehule wrote:
> Hi
>
> [psql-gfmt.patch]

This seems useful and works well; I haven't found any errors. Well done.

However, I have a suggestion that is perhaps slightly outside of this
patch but functionally so close that maybe we can discuss it here.

When you try to get a tab-separated output via this new \gfmt in a
one-liner
you're still forced to use
\pset csv_fieldsep '\t'

Would it be possible to do one of the following to enable a more compact
one-liner syntax:

1. add an option:
\gfmt tsv --> use a TAB instead of a comma in the csv

or

2. let the psql command-line option '--csv' honour the value given by
psql -F/--field-separator (it does not do so now)

or

3. add an psql -commandline option:
--csv-field-separator

Any of these three (I'd prefer the first) would make producing a tsv in
shell one-liners with psql easier/more compact.

Thanks,

Erik Rijkers

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