[postgis-tickets] [PostGIS] #2953: Unable to compute stats for some features
PostGIS
trac at osgeo.org
Thu Oct 2 10:24:19 PDT 2014
#2953: Unable to compute stats for some features
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Reporter: pramsey | Owner: pramsey
Type: defect | Status: new
Priority: high | Milestone: PostGIS 2.1.5
Component: postgis | Version: 2.1.x
Keywords: stats |
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Comment(by pramsey):
So, my fix just catches cases where a big double gets converted into an
Inf float, and instead converts them into MAX_FLT/MIN_FLT (depending on
whether it's positive or negative). I feel like that's "OK", in a
practical sense, since we're talking about values > 10^38 here.
Another solution would be to try and fit the estimation code to still fail
in cases of Inf boxes, but instead to fail a bit more selectively, since
in the case of this example it would be possible to compute a 2D stats
histogram, just not a 4D one. Unfortunately a lot of the code works in the
ND case and the 2D case is just a small specialization.
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Ticket URL: <http://trac.osgeo.org/postgis/ticket/2953#comment:1>
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