| From: | Andrew Borodin <borodin(at)octonica(dot)com> |
|---|---|
| To: | Peter Geoghegan <pg(at)bowt(dot)ie> |
| 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 19:01:26 |
| Message-ID: | CAJEAwVEdJSU0OpdTGBsBBLeHKL0VAnC+yz+ii4Lt+EphU5VpDA@mail.gmail.com |
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| Lists: | pgsql-hackers |
2017-03-16 23:55 GMT+05:00 Peter Geoghegan <pg(at)bowt(dot)ie>:
> 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.
That's true. This is a distant plan...
Best regards, Andrey Borodin.
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