| From: | Andres Freund <andres(at)2ndquadrant(dot)com> |
|---|---|
| To: | Jeff Janes <jeff(dot)janes(at)gmail(dot)com> |
| Cc: | Alvaro Herrera <alvherre(at)2ndquadrant(dot)com>, Bruce Momjian <bruce(at)momjian(dot)us>, Heikki Linnakangas <hlinnakangas(at)vmware(dot)com>, Josh Berkus <josh(at)agliodbs(dot)com>, Pavan Deolasee <pavan(dot)deolasee(at)gmail(dot)com>, Sawada Masahiko <sawada(dot)mshk(at)gmail(dot)com>, Fujii Masao <masao(dot)fujii(at)gmail(dot)com>, Samrat Revagade <revagade(dot)samrat(at)gmail(dot)com>, Peter Eisentraut <peter_e(at)gmx(dot)net>, PostgreSQL-development <pgsql-hackers(at)postgresql(dot)org> |
| Subject: | Re: Patch for fail-back without fresh backup |
| Date: | 2014-01-16 19:05:33 |
| Message-ID: | 20140116190533.GB30206@awork2.anarazel.de |
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| Lists: | pgsql-hackers |
On 2014-01-16 11:01:29 -0800, Jeff Janes wrote:
> I think the argument is that drawing the next value from a sequence can
> generate xlog that needs to be flushed, but doesn't assign an xid.
Then that should assign an xid. Which would yield correct behaviour with
async commit where it's currently *not* causing a WAL flush at all
unless a page boundary is crossed.
I've tried arguing that way before...
Greetings,
Andres Freund
--
Andres Freund http://www.2ndQuadrant.com/
PostgreSQL Development, 24x7 Support, Training & Services
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