| From: | Alvaro Herrera <alvherre(at)commandprompt(dot)com> |
|---|---|
| To: | Robert Haas <robertmhaas(at)gmail(dot)com> |
| Cc: | Jeroen Vermeulen <jtv(at)xs4all(dot)nl>, Andres Freund <andres(at)anarazel(dot)de>, Pg Hackers <pgsql-hackers(at)postgresql(dot)org> |
| Subject: | Re: extending relations more efficiently |
| Date: | 2012-05-02 17:06:55 |
| Message-ID: | 1335978345-sup-7773@alvh.no-ip.org |
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| Thread: | |
| Lists: | pgsql-hackers |
Excerpts from Robert Haas's message of mié may 02 12:55:17 -0400 2012:
>
> On Wed, May 2, 2012 at 12:46 PM, Alvaro Herrera
> <alvherre(at)commandprompt(dot)com> wrote:
> > Agreed. Perhaps to solve this issue what we need is a way to migrate
> > tuples from later pages into earlier ones. (This was one of the points,
> > never resolved, that we discussed during the VACUUM FULL rework.)
>
> Yeah, I agree. And frankly, we need to find a way to make it work
> without taking AccessExclusiveLock on the relation. Having to run
> VACUUM FULL is killing actual users and scaring off potential ones.
And ideally without bloating the indexes while at it.
--
Álvaro Herrera <alvherre(at)commandprompt(dot)com>
The PostgreSQL Company - Command Prompt, Inc.
PostgreSQL Replication, Consulting, Custom Development, 24x7 support
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