[postgis-devel] Re: geometry stats

strk strk at keybit.net
Mon Feb 23 13:27:48 PST 2004


dblasby wrote:
> Every 'vacuum analyse' you do should make the histogram "smarter".

I don't think this is feasable. We won't be able to tell whether
the existing histogram is still valid (rows deletion/update).

To make the histogram as smart as it is now we can just require
the whole dataset to be feed to the stats builder routine, but
that is something people seems to be trying avoiding :)

--strk;



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