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Re: index bloat in 8.4-dev

From: Jeff Davis <pgsql(at)j-davis(dot)com>
To: Heikki Linnakangas <heikki(dot)linnakangas(at)enterprisedb(dot)com>
Cc: pgsql-bugs(at)postgresql(dot)org
Subject: Re: index bloat in 8.4-dev
Date: 2008-10-07 19:20:45
Message-ID: 1223407245.9936.8.camel@dell.linuxdev.us.dell.com (view raw or flat)
Thread:
Lists: pgsql-bugs
On Tue, 2008-10-07 at 08:14 -0700, Jeff Davis wrote:
> In the VACUUM VERBOSE output I included, you can see that the heap is
> only 785 pages (after 200M rows went through that table), and it
> maintains that consistently. That means to me that the VACUUMs are
> running and properly freeing the space in the heap. And the output seems
> to indicate that it thinks it can re-use those index pages, it just
> doesn't. 

I think something may have been flawed in my simpler tests, so ignore
this.

I did see some kind of problem here in a more complex case, but I think
I'll have to narrow it down again.

	Regards,
		Jeff Davis


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