pá 20. 1. 2023 v 2:55 odesílatel Bruce Momjian <br...@momjian.us> napsal:
> On Thu, Jan 19, 2023 at 07:53:43PM -0500, Tom Lane wrote: > > Bruce Momjian <br...@momjian.us> writes: > > > I am not sure what you are referring to above? character_length? I > was > > > talking about display length, and psql uses that --- at some point, our > > > lack of support for graphemes will cause psql to not align columns. > > > > That's going to happen regardless, as long as we can't be sure > > what the display will do with the characters --- and that's a > > problem that will persist for a very long time. > > > > Ideally, yeah, it'd be great if all this stuff rendered perfectly; > > but IMO it's so far outside mainstream usage of psql that it's > > not something that could possibly repay the investment of time > > to get even a partial solution. > > We have a few options: > > * TODO item > * document psql works that way > * do nothing > > I think the big question is how common such cases will be in the future. > The report from 2022, and one from 2019 didn't seem to clearly outline > the issue so it would good to have something documented somewhere. > There can be a note in psql documentation like "Unicode grapheme clusters are not supported yet. It is not well supported by other necessary software like terminal emulators and curses libraries". I partially watch an progres in VTE - one of the widely used terminal libs, and I am very sceptical so there will be support in the next two years. Maybe the new microsoft terminal will give this area a new dynamic, but currently only few people on the planet are working on fixing or enhancing terminal's technologies. Unfortunately there is too much historical balast. Regards Pavel > -- > Bruce Momjian <br...@momjian.us> https://momjian.us > EDB https://enterprisedb.com > > Embrace your flaws. They make you human, rather than perfect, > which you will never be. > > >
