On Mon, 2010-02-01 at 12:30 +0200, Heikki Linnakangas wrote:
> Simon Riggs wrote:
> > On Mon, 2010-02-01 at 12:11 +0200, Heikki Linnakangas wrote:
> >> Simon Riggs wrote:
> >>> On Mon, 2010-02-01 at 11:33 +0200, Heikki Linnakangas wrote:
> >>>> Can you reproduce that?
> >>> Every time
> >> Ok, good :-). What I really meant was: How?
> > 
> > As mentioned in first post: VACUUM FULL and CLUSTER.
> 
> I'm asking because I couldn't reproduce it. I added an elog(LOG) to
> XLogReportUnloggedStatement() so that I can see when an unlogged-record
> is written. Then I ran:
> 
> CREATE TEMPORARY TABLE foo (id int4);
> VACUUM FULL foo;
> 
> But XLogReportUnloggedStatement() was not executed. When I removed the
> "TEMPORARY" and tried again, it was executed.

drop table if exists foo;
create table foo (col1 serial, col2 text);
insert into foo (col2) 
select repeat('a', 5000) from generate_series(1,1000);
create index on foo (col1);
cluster foo using foo_col1_idx;

So it appears this relates to toast tables.

-- 
 Simon Riggs           www.2ndQuadrant.com

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• Re: [COMMITTERS] pgsql: Write a WAL record whenever we perform an operation without at 2010-02-01 10:30:43 from Heikki Linnakangas

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