[postgis-devel] [PostGIS] #253: Gist causes wrong result from ~=
PostGIS
trac at osgeo.org
Fri Oct 2 00:09:20 PDT 2009
#253: Gist causes wrong result from ~=
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Reporter: nicklas | Owner: pramsey
Type: defect | Status: new
Priority: medium | Milestone: postgis 1.5.0
Component: postgis | Version: 1.4.X
Resolution: | Keywords:
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Comment (by nicklas):
I have tried:
8.3.7 with postgis 1.3.5 wich gives the expected result, returning nothing
Then I have tried
8.4.1 with postgis 1.4.0 and my spike, both giving the strange result with
returning two rows.
It is difficult to investigate what is happening since the fenomen
dissapears at once you take away any of the other polygons. It must be
something with the way the index is built with this specific dataset. I
guess it makes this a quite mean bug since it can hide wrong answers among
many correct answers.
how to see how the index is built in this case?
/Nicklas
--
Ticket URL: <http://trac.osgeo.org/postgis/ticket/253#comment:4>
PostGIS <http://trac.osgeo.org/postgis/>
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