| From: | Amit Kapila <amit(dot)kapila16(at)gmail(dot)com> |
|---|---|
| To: | Robert Haas <robertmhaas(at)gmail(dot)com> |
| Cc: | Tomas Vondra <tomas(dot)vondra(at)2ndquadrant(dot)com>, Masahiko Sawada <masahiko(dot)sawada(at)2ndquadrant(dot)com>, Sergei Kornilov <sk(at)zsrv(dot)org>, Mahendra Singh <mahi6run(at)gmail(dot)com>, Dilip Kumar <dilipbalaut(at)gmail(dot)com>, Masahiko Sawada <sawada(dot)mshk(at)gmail(dot)com>, Kyotaro HORIGUCHI <horiguchi(dot)kyotaro(at)lab(dot)ntt(dot)co(dot)jp>, Haribabu Kommi <kommi(dot)haribabu(at)gmail(dot)com>, Michael Paquier <michael(dot)paquier(at)gmail(dot)com>, Amit Langote <langote_amit_f8(at)lab(dot)ntt(dot)co(dot)jp>, David Steele <david(at)pgmasters(dot)net>, Claudio Freire <klaussfreire(at)gmail(dot)com>, Simon Riggs <simon(at)2ndquadrant(dot)com>, Pavan Deolasee <pavan(dot)deolasee(at)gmail(dot)com>, PostgreSQL-development <pgsql-hackers(at)postgresql(dot)org> |
| Subject: | Re: [HACKERS] Block level parallel vacuum |
| Date: | 2020-01-04 01:41:55 |
| Message-ID: | CAA4eK1LgQkB=3vu7c6mbBP15L3L4hhN7Atc_4qgJ88a6riMq+Q@mail.gmail.com |
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| Lists: | pgsql-hackers |
On Fri, Jan 3, 2020 at 10:15 PM Robert Haas <robertmhaas(at)gmail(dot)com> wrote:
>
> On Sun, Dec 29, 2019 at 4:23 PM Tomas Vondra
> <tomas(dot)vondra(at)2ndquadrant(dot)com> wrote:
> > IMO there's not much reason for the leader not to participate. For
> > regular queries the leader may be doing useful stuff (essentially
> > running the non-parallel part of the query) but AFAIK for VAUCUM that's
> > not the case and the worker is not doing anything.
>
> I agree, and said the same thing in
> http://postgr.es/m/CA+Tgmob7JLrngeHz6i60_TqdvE1YBcvGYVoEQ6_xvP=vN7DwGg@mail.gmail.com
>
> I really don't know why we have that code.
>
We have removed that code from the main patch. It is in a separate
patch and used mainly for development testing where we want to
debug/test the worker code.
--
With Regards,
Amit Kapila.
EnterpriseDB: http://www.enterprisedb.com
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