Re: bitwise and/or aggregate functions?
| От | Fabien COELHO |
|---|---|
| Тема | Re: bitwise and/or aggregate functions? |
| Дата | |
| Msg-id | Pine.LNX.4.58.0404281153050.28436@sablons.cri.ensmp.fr обсуждение исходный текст |
| Ответ на | Re: bitwise and/or aggregate functions? (Christopher Kings-Lynne <chriskl@familyhealth.com.au>) |
| Ответы |
Re: bitwise and/or aggregate functions?
|
| Список | pgsql-hackers |
> > I thought of BIT_* because it is short and also used by mysql. > > Ingres has BIT_AND and BIT_OR functions, but they are not aggregates. > > > > I don't know where these standards are available online... It seems they > > are not available:-( > > Neil - can you check your SQL2003 copy to see if it mentions standard > aggregates on bit types? I haven't seen such a function in the "draft" standard I have found. It seems it is not yet available from INCITS. There are also EVERY (= aggregate AND) and SOME/ANY (= aggregate OR) for booleans, that are interesting. I'll add them with the patch. However I think that I may need to add two small functions for that. -- Fabien Coelho - coelho@cri.ensmp.fr
В списке pgsql-hackers по дате отправления: