Hi Paul, On Sat, Feb 23, 2019 at 2:16 AM Paul Jungwirth <p...@illuminatedcomputing.com> wrote:
> On 2/22/19 11:31 AM, Euler Taveira wrote: > > Em sex, 22 de fev de 2019 às 15:41, Ibrar Ahmed > > <ibrar.ah...@gmail.com> escreveu: > >> > >> While working on another PostgreSQL feature, I was thinking that we > could use a temporal table in PostgreSQL. Some existing databases offer > this. I searched for any discussion on the PostgreSQL mailing list, but > could not find any. Maybe my search wasn’t accurate enough: if anyone can > point me to a discussion, that would be useful. > >> > > > https://www.postgresql.org/message-id/CA%2BrenyUb%2BXHzsrPHHR6ELqguxaUPGhOPyVc7NW%2BkRsRpBZuUFQ%40mail.gmail.com > > > > This is the last one. I don't know why it wasn't in the January CF. > > Oh that's by me! :-) > > I didn't put it into the CF because I wanted to get some feedback on > primary keys before I got too far into foreign keys, but someone > recently advised me to starting adding to CFs anyway with "WIP" in the > title, so I'll do that next time. > > Btw my own patch is very modest, and I'd love to see this other much > more extensive patch get some attention: > > > https://www.postgresql.org/message-id/flat/CAHO0eLYyvuqwF%3D2FsgDn1xOs_NOrFBu9Xh-Wq%2BaWfFy0y6%3DjWQ%40mail.gmail.com#4f7fbace3a2f2ce85fcc161cc3fdd273 > > They were told to adjust where in the query pipeline they do their work, > and the latest patch does that (as I understand it), but I don't think > anyone has looked at it yet. > > Both of these patches use range types rather than SQL:2011 PERIODs, but > I'd like to *also* support PERIODs (and accept ranges everywhere we > accept PERIODs). Vik Fearing already has a patch to let you *declare* > PERIODs: > > https://www.postgresql-archive.org/Periods-td6022563.html > > Actually using PERIODs in queries seems like a decent chunk of work > though: basically it means making our grammar & processing accept > PERIODs anywhere they currently accept columns. I'd love to hear some > thoughts/suggestions around that. For example: a PERIOD is *similar* to > a GENERATED column, so maybe the work being done there can/should > influence how we implement them. > > I'm excited to be getting some momentum around temporal features though! > I'm supposed to give a talk about them at PGCon in Ottawa this spring, > so hopefully that will help too. > > Yours, > > -- > Paul ~{:-) > p...@illuminatedcomputing.com > > Great, to hear that you are working on that. Do you think I can help you with this? I did some groundwork to make it possible. I can help in coding/reviewing or even can take lead if you want to. -- Ibrar Ahmed
