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

[PostGIS]

#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):

 ---------------------------------------------------------------
 32 bit Debian Linux, Intel, Postgres 9.1.1, Postgis some prev trunk (?)

 db_20b=# SELECT ST_AsText(ST_AddPoint(
 db_20b(# ST_GeomFromText('LINESTRING(20 20,30 30,40 40)', 4326),
 db_20b(# ST_GeomFromText('POINT(10 10)', 4326),
 db_20b(# 0));
               st_astext
 -------------------------------------
  LINESTRING(10 10,20 20,20 20,40 40)
 (1 row)

 ================================================================
 32bit Debian Linux, Intel, Postgres 9.1.1, rebuilt trunk v8251

 db_20b=# SELECT ST_AsText(ST_AddPoint(
 db_20b(# ST_GeomFromText('LINESTRING(20 20,30 30,40 40)', 4326),
 db_20b(# ST_GeomFromText('POINT(10 10)', 4326),
 db_20b(# 0));
               st_astext
 -------------------------------------
  LINESTRING(10 10,20 20,20 20,40 20)
 (1 row)

 ======================================================
 64bit Linux, Intel, Postgres 9.0.5, Postgis trunk v8251

 db_20b=# SELECT ST_AsText(ST_AddPoint(
 db_20b(# ST_GeomFromText('LINESTRING(20 20,30 30,40 40)', 4326),
 db_20b(# ST_GeomFromText('POINT(10 10)', 4326),
 db_20b(# 0));
               st_astext
 -------------------------------------
  LINESTRING(10 10,20 20,30 30,30 30)
 (1 row)

-- 
Ticket URL: <http://trac.osgeo.org/postgis/ticket/1335#comment:3>
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