Re: WAL logging volume and CREATE TABLE

Patch applied.

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Bruce Momjian wrote:
> Alvaro Herrera wrote:
> > Excerpts from Bruce Momjian's message of mar ago 02 22:46:55 -0400 2011:
> >
> > > I have created a documentation patch to clarify this, and to mention
> > > CREATE TABLE AS which also has this optimization.
> >
> > It doesn't seem particularly better to me. How about something like
> >
> > In minimal level, WAL-logging of some operations can be safely skipped,
> > which can make those operations much faster (see <blah>). Operations on
> > which this optimization can be applied include:
> > <simplelist>
> > <item>CREATE INDEX</item>
> > <item>CLUSTER</item>
> > <item>CREATE TABLE AS</item>
> > <item>COPY, when tables that were created or truncated in the same
> > transaction
> > </simplelist>
> >
> > Minimal WAL does not contain enough information to reconstruct the data
> > from a base backup and the WAL logs, so either <literal>archive</> or
> > <literal>hot_standby</> level must be used to enable ...
>
> Good idea --- updated patch attached.
>
> --
> Bruce Momjian <bruce(at)momjian(dot)us> http://momjian.us
> EnterpriseDB http://enterprisedb.com
>
> + It's impossible for everything to be true. +

>
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--
Bruce Momjian <bruce(at)momjian(dot)us> http://momjian.us
EnterpriseDB http://enterprisedb.com

+ It's impossible for everything to be true. +