po 28. 2. 2022 v 23:46 odesÃlatel Tom Lane <t...@sss.pgh.pa.us> napsal:
> Noboru Saito <noboru...@gmail.com> writes: > > I have created a patch that allows you to turn it on and off in \pset. > > The attached patch adds the following features. > > Formfeed can be turned on with the command line option or \pset. > > Formfeed (\f\n) is output after the query execution result by \watch. > > Hmm ... I grant your use-case for this, but I think the patch > is too narrow-minded, because it supposes that the only string > anybody could wish to output between \watch commands is "\f\n". > Once you open the floodgates of inserting formatting there, > ISTM that people might want other things. > > Also, I'm not that thrilled with treating this as a \pset option, > because it has nothing to do with formatting of normal query > results. (IMV anyway, perhaps others will disagree.) > pspg (and ov pager too) supports streaming (pspg is used in another terminal than psql), and for this case, the marks can be useful for all modes. Regards Pavel > > How about instead of defining fixed semantics, we invent a psql > special variable that can contain a string to be output between > \watch commands? It looks like you could then set it through > a command like > > \set WATCH_SEPARATOR '\f\n' > > (not wedded to that variable name, it's just the first idea > that came to mind) > > Personally I'd not bother with inventing a specialized command-line > option to set it, either. There's already -v and friends. > > > * Is formfeed output after the result, not before? > > Or we could invent WATCH_BEFORE and WATCH_AFTER ... > > regards, tom lane > > >
