| From: | Peter Geoghegan <pg(at)bowt(dot)ie> |
|---|---|
| To: | amborodin(at)acm(dot)org |
| Cc: | David Steele <david(at)pgmasters(dot)net>, Jeff Davis <pgsql(at)j-davis(dot)com>, PostgreSQL-development <pgsql-hackers(at)postgresql(dot)org>, Vladimir Borodin <root(at)simply(dot)name> |
| Subject: | Re: Review: GIN non-intrusive vacuum of posting tree |
| Date: | 2017-03-16 18:55:11 |
| Message-ID: | CAH2-Wz==43fmY1B3HiY7B+AqJVqsvqxJZiXRik05gsKM6_3Suw@mail.gmail.com |
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| Lists: | pgsql-hackers |
On Thu, Mar 16, 2017 at 11:53 AM, Andrew Borodin <borodin(at)octonica(dot)com> wrote:
> 2. Thus, L&S fully concurrent vacuum is possible, indeed, and
> furthermore Theodor suggested that I should implement not only page
> eviction, but also page merge and tree condence algorithm.
I think that it's very hard to make merging of pages that are not
completely empty work, while also using the L&Y algorithm.
--
Peter Geoghegan
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