[postgis-tickets] [PostGIS] #1987: Results given by ST_Simplify inconsistent between PostGIS 1.5.2 and 2.0.1

[PostGIS]

#1987: Results given by ST_Simplify inconsistent between PostGIS 1.5.2 and 2.0.1
---------------------------+------------------------------------------------
  Reporter:  ChrisInCambo  |       Owner:  pramsey      
      Type:  defect        |      Status:  closed       
  Priority:  blocker       |   Milestone:  PostGIS 2.0.2
 Component:  postgis       |     Version:  2.0.x        
Resolution:  fixed         |    Keywords:  history      
---------------------------+------------------------------------------------

Comment(by strk):

 robe: we _might_ have a "legacy mode" (or bigger set of params) as a GUC.
 {{{SET postgis_simplify_collapses_as_null TRUE}} kind of thing.
 Or I could add an st_simplify_nullifcollapsed for a legacy, is that what
 you had in mind ?

 Chris: 2.0.2 restored 1.5.x behavior, but I keep thinking that behavior is
 suboptimal because it destroys information that could be destroyed by a
 subsequent function (ie: drop areas smaller than X). I think the most help
 you can give is by providing us the data that was giving you problem, to
 better analyze what the problem was.

-- 
Ticket URL: <http://trac.osgeo.org/postgis/ticket/1987#comment:31>
PostGIS <http://trac.osgeo.org/postgis/>
The PostGIS Trac is used for bug, enhancement & task tracking, a user and developer wiki, and a view into the subversion code repository of PostGIS project.