2017-10-28 23:35 GMT+02:00 Alexander Korotkov <a.korot...@postgrespro.ru>:
> On Sat, Oct 28, 2017 at 3:46 PM, Pavel Stehule <pavel.steh...@gmail.com> > wrote: > >> 2017-09-22 21:31 GMT+02:00 Pavel Stehule <pavel.steh...@gmail.com>: >> >>> >>> >>> 2017-09-22 21:12 GMT+02:00 Peter Eisentraut < >>> peter.eisentr...@2ndquadrant.com>: >>> >>>> On 9/22/17 09:16, Pavel Stehule wrote: >>>> > Example: somebody set SORT_COLUMNS to schema_name value. This is >>>> > nonsense for \l command >>>> > >>>> > Now, I am thinking so more correct and practical design is based on >>>> > special mode, activated by variable >>>> > >>>> > PREFER_SIZE_SORT .. (off, asc, desc) >>>> > >>>> > This has sense for wide group of commands that can show size. And when >>>> > size is not visible, then this option is not active. >>>> >>>> Maybe this shouldn't be a variable at all. It's not like you'll set >>>> this as a global preference. You probably want it for one command only. >>>> So a per-command option might make more sense. >>>> >>> >>> Sure, I cannot to know, what users will do. But, when I need to see a >>> size of objects, then I prefer the sort by size desc every time. If I need >>> to find some object, then I can to use a searching in pager. So in my case, >>> this settings will be in psqlrc. In GoodData we used years own >>> customization - the order by size was hardcoded and nobody reported me any >>> issue. >>> >>> Alexander proposed some per command option, but current syntax of psql >>> commands don't allows some simple parametrization. If it can be user >>> friendly, then it should be short. From implementation perspective, it >>> should be simply parsed. It should be intuitive too - too much symbols >>> together is not good idea. >>> >>> Maybe some prefix design - but it is not design for common people >>> (although these people don't use psql usually) >>> >>> '\sort size \dt ? >>> >>> \dt:sort_by_size >>> \dt+:sort_by_size ? >>> >>> I don't see any good design in this direction >>> >>> >> I though about Alexander proposal, and I am thinking so it can be >> probably best if we respect psql design. I implemented two command suffixes >> (supported only when it has sense) "s" sorted by size and "d" as descent >> >> so list of tables can be sorted with commands: >> >> \dt+sd (in this case, the order is not strict), so command >> \dtsd+ is working too (same \disd+ or \di+sd) >> >> These two chars are acceptable. Same principle is used for \l command >> >> \lsd+ or \l+sd >> >> What do you think about it? >> > > I think \lsd+ command would be another postgres meme :) > BTW, are you going to provide an ability to sort by name, schema? > It has sense only for tables - probably only \dtn "n" like name > ------ > Alexander Korotkov > Postgres Professional: http://www.postgrespro.com > The Russian Postgres Company >
