From: | Alvaro Herrera <alvherre(at)commandprompt(dot)com> |
---|---|
To: | Robert Haas <robertmhaas(at)gmail(dot)com> |
Cc: | Leonardo Francalanci <m_lists(at)yahoo(dot)it>, pgsql-hackers <pgsql-hackers(at)postgresql(dot)org> |
Subject: | Re: switch UNLOGGED to LOGGED |
Date: | 2011-05-09 16:51:18 |
Message-ID: | 1304959722-sup-5292@alvh.no-ip.org |
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Lists: | pgsql-hackers |
Excerpts from Robert Haas's message of vie may 06 23:25:09 -0300 2011:
> On Fri, Apr 22, 2011 at 4:13 AM, Leonardo Francalanci <m_lists(at)yahoo(dot)it> wrote:
> >> Maybe you should change xl_act_commit to have a separate list of rels to
> >> drop the init fork for (instead of mixing those with the list of files to
> >> drop as a whole).
> >
> > I tried to follow your suggestion, thank you very much.
>
> I have to admit I don't like this approach very much. I can't see
> adding 4 bytes to every commit record for this feature.
Hmm, yeah. Maybe we can add a "flags" int8 somewhere in that struct and
set a bit in it if nrels, nsubxacts, nmsgs and respective arrays are present.
That would save some int's that are already in there.
--
Álvaro Herrera <alvherre(at)commandprompt(dot)com>
The PostgreSQL Company - Command Prompt, Inc.
PostgreSQL Replication, Consulting, Custom Development, 24x7 support
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