Re: AW: question about index cost estimates

From: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
To: Zeugswetter Andreas SB <ZeugswetterA(at)wien(dot)spardat(dot)at>
Cc: "'pgsql-hackers(at)postgresql(dot)org'" <pgsql-hackers(at)postgresql(dot)org>
Subject: Re: AW: question about index cost estimates
Date: 2000-05-18 07:40:41
Message-ID: 22427.958635641@sss.pgh.pa.us
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Zeugswetter Andreas SB <ZeugswetterA(at)wien(dot)spardat(dot)at> writes:
> Another metric that would be interesing is a number that represents
> the divergence of the heap order from the index sort order.

Oh, absolutely! Got any ideas about how to get that number in a
reasonable amount of time (not too much more than VACUUM takes now)?
I've been drawing a blank :-(

regards, tom lane

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