[postgis-devel] [PostGIS] #1335: ST_AddPoint returns incorrect result on Linux

PostGIS trac at osgeo.org
Mon Nov 28 20:34:03 PST 2011


#1335: ST_AddPoint returns incorrect result on Linux
---------------------------+------------------------------------------------
 Reporter:  realityexists  |       Owner:  pramsey      
     Type:  defect         |      Status:  new          
 Priority:  critical       |   Milestone:  PostGIS 2.0.0
Component:  postgis        |     Version:  trunk        
 Keywords:                 |  
---------------------------+------------------------------------------------

Comment(by darkblueb):

 two queries sequentially gives the same results; interspersing a function
 call in between gives two *different* results with the same build on the
 same architecture.
 {{{

 geocoder_ca=# SELECT ST_AsText(ST_AddPoint(
 ST_GeomFromText('LINESTRING(20 20,30 30,40 40)', 4326),
 ST_GeomFromText('POINT(10 10)', 4326),
 0));
               st_astext
 -------------------------------------
  LINESTRING(10 10,20 20,20 20,40 20)
 (1 row)

 geocoder_ca=# select postgis_full_version();
 geocoder_ca=# SELECT ST_AsText(ST_AddPoint(
 ST_GeomFromText('LINESTRING(20 20,30 30,40 40)', 4326),
 ST_GeomFromText('POINT(10 10)', 4326),
 0));
               st_astext
 -------------------------------------
  LINESTRING(10 10,20 20,20 20,40 40)
 (1 row)
 }}}

-- 
Ticket URL: <http://trac.osgeo.org/postgis/ticket/1335#comment:5>
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