Re: [HACKERS] Review: GIN non-intrusive vacuum of posting tree - Mailing list pgsql-hackers

From Andrew Borodin
Subject Re: [HACKERS] Review: GIN non-intrusive vacuum of posting tree
Date
Msg-id CAJEAwVEdJSU0OpdTGBsBBLeHKL0VAnC+yz+ii4Lt+EphU5VpDA@mail.gmail.com
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In response to Re: [HACKERS] Review: GIN non-intrusive vacuum of posting tree  (Peter Geoghegan <pg@bowt.ie>)
List pgsql-hackers
2017-03-16 23:55 GMT+05:00 Peter Geoghegan <pg@bowt.ie>:
> On Thu, Mar 16, 2017 at 11:53 AM, Andrew Borodin <borodin@octonica.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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