| From: | Dilip Kumar <dilipbalaut(at)gmail(dot)com> |
|---|---|
| To: | Amit Kapila <amit(dot)kapila16(at)gmail(dot)com> |
| Cc: | Masahiko Sawada <sawada(dot)mshk(at)gmail(dot)com>, Mahendra Singh <mahi6run(at)gmail(dot)com>, Kyotaro HORIGUCHI <horiguchi(dot)kyotaro(at)lab(dot)ntt(dot)co(dot)jp>, Robert Haas <robertmhaas(at)gmail(dot)com>, 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: | 2019-10-15 08:34:36 |
| Message-ID: | CAFiTN-vukQZPPtLeQ=-cGgPT=NWEgx4kk6wybwf7UxipNNhZqQ@mail.gmail.com |
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| Lists: | pgsql-hackers |
On Tue, Oct 15, 2019 at 12:25 PM Amit Kapila <amit(dot)kapila16(at)gmail(dot)com> wrote:
>
> Right, apart from some functions for memory allocation/estimation and
> stats copy, we might need something like amcanparallelvacuum, so that
> index methods can have the option to not participate in parallel
> vacuum due to reasons similar to gist or something else. I think we
> can work towards this direction as this anyway seems to be required
> and till we reach any conclusion for gist indexes, you can mark
> amcanparallelvacuum for gist indexes as false.
>
I think for estimating the size of the stat I suggest "amestimatestat"
or "amstatsize" and for copy stat data we can add "amcopystat"? It
would be helpful to extend the parallel vacuum for the indexes which
has extended stats.
--
Regards,
Dilip Kumar
EnterpriseDB: http://www.enterprisedb.com
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