Re: [PoC] Asynchronous execution again (which is not parallel)
От | Kyotaro HORIGUCHI |
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Тема | Re: [PoC] Asynchronous execution again (which is not parallel) |
Дата | |
Msg-id | 20151214.183050.208194045.horiguchi.kyotaro@lab.ntt.co.jp обсуждение исходный текст |
Ответ на | Re: [PoC] Asynchronous execution again (which is not parallel) (Amit Langote <Langote_Amit_f8@lab.ntt.co.jp>) |
Список | pgsql-hackers |
Thank you a lot! At Mon, 14 Dec 2015 17:51:41 +0900, Amit Langote <Langote_Amit_f8@lab.ntt.co.jp> wrote in <566E831D.1050703@lab.ntt.co.jp> > > Hi, > > On 2015/12/14 17:34, Kyotaro HORIGUCHI wrote: > > At Tue, 8 Dec 2015 10:40:20 -0500, Robert Haas <robertmhaas@gmail.com> wrote > >> But is it important enough to be worthwhile? Maybe, maybe not. I > >> think we should be working toward a world where the Gather is at the > >> top of the plan tree as often as possible, in which case > >> asynchronously kicking off a Gather node won't be that exciting any > >> more - see notes on the "parallelism + sorting" thread where I talk > >> about primitives that would allow massively parallel merge joins, > >> rather than 2 or 3 way parallel. > > > > Could you give me the subject of the thread? Or important message > > of that. > > I think that would be the following thread: > > * parallelism and sorting * > http://www.postgresql.org/message-id/CA+TgmoYh4zsQMgqiyra7zO1RBBvG1qHn1fJT5q0Fpw+Q0xAjrg@mail.gmail.com Thank you for the pointer. I'll read it. # It's hard for me to do eyeball-greping on English texts.. regards, -- Kyotaro Horiguchi NTT Open Source Software Center
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