[postgis-tickets] [PostGIS] #3521: Wrong result of <select distinct geometry from XXX>

PostGIS trac at osgeo.org
Wed Apr 6 19:05:00 PDT 2016


#3521: Wrong result of <select distinct geometry from XXX>
-------------------------+---------------------
 Reporter:  yuanrui1987  |      Owner:  pramsey
     Type:  defect       |     Status:  new
 Priority:  high         |  Milestone:
Component:  postgis      |    Version:  1.5.X
 Keywords:               |
-------------------------+---------------------
 Hi,

 Sorry to bother.
 I have encountered the following problem, please help me.

 I have one table, and its name is <temp_union_test>, the column of
 geometry is <the_geom>. there are two geometries, and they have the same
 bounding box.
 when I execute < select distinct the_geom from temp_union_test >, there is
 only one row returned, but actually, the two geometries is totally
 different.
 I have tried this execution on PostGIS 1.5 and PostGIS 2.0, the results is
 always the same.

 Would you help me to solve this problem?
 If you have any concern about it, I would be very appreciate it.
 Thank you.

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Ticket URL: <http://trac.osgeo.org/postgis/ticket/3521>
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