Re: PostgreSQL 8.0.6 crash - Mailing list pgsql-hackers

From Jim C. Nasby
Subject Re: PostgreSQL 8.0.6 crash
Date
Msg-id 20060211115334.GJ57845@pervasive.com
Whole thread Raw
In response to Re: PostgreSQL 8.0.6 crash  ("Mark Woodward" <pgsql@mohawksoft.com>)
List pgsql-hackers
On Fri, Feb 10, 2006 at 12:16:04PM -0500, Mark Woodward wrote:
> > And even when PostgreSQL has the server all to itself, having a hashagg
> > spill to disk is *way* better than pushing the machine into a swap
> > storm. At least if you spill the hashagg you only have one backend
> > running at a snail's pace; a swap storm means next to nothing gets done.
> >
> >> This was/is an example of where the behavior of PostgreSQL is clearly
> >> unacceptable. OK, yes, this problem goes away with an ANALYZE, but it
> >> isn't clear how anyone could have known this, and unexpected behavior is
> >> bad in any product.
> >
> > Care to submit a documentation patch before releases are bundled (I
> > think on Sunday?) At least then people would be aware that work_mem is
> > just a suggestion to hash_aggs. I'd do a patch myself but I doubt I'll
> > have time before the release. :(
> 
> I would be glad too. What's the process?

Well, find the appropriate file in doc/src/sgml, make a copy, edit the
file, generate a diff with diff -u, and email that diff/patch to
pgsql-patches.
-- 
Jim C. Nasby, Sr. Engineering Consultant      jnasby@pervasive.com
Pervasive Software      http://pervasive.com    work: 512-231-6117
vcard: http://jim.nasby.net/pervasive.vcf       cell: 512-569-9461


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