čt 26. 3. 2020 v 19:41 odesílatel Erik Rijkers <er@xs4all.nl> napsal:
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.
I understand to your proposal, but it's hard to do inside \gfmt command
1. a syntax of psql backslash commands doesn't support named parameters, and \gfmt (like some others \gx) statements has optional parameter already. There was a long discussion (without success) about possible parametrizations of psql commands.
2. if I understand to tsv format, then it is not CSV format with different separator.
the most correct design is introduction new output format "tsv".This format can produce 100% valid tsv.
