[postgis-tickets] [PostGIS] #4182: Unexpected TopologyException during ST_Union aggregate function with valid polygons

PostGIS trac at osgeo.org
Wed Aug 21 23:43:22 PDT 2019


#4182: Unexpected TopologyException during ST_Union aggregate function with valid
polygons
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  Reporter:  blaggner  |      Owner:  pramsey
      Type:  defect    |     Status:  new
  Priority:  medium    |  Milestone:  PostGIS GEOS
 Component:  postgis   |    Version:  2.3.x
Resolution:            |   Keywords:
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Comment (by blaggner):

 That is interesting to know! Even though the tiny holes will surely be
 unwanted for further processing, I immediately have ideas how to possibly
 deal with them as long as the ST_Union is able to run without an error.
 But, weren't there improvements in planning that would enable ST_Union and
 other functions to run with a user-defined reduced accuracy? That would
 surely solve (or reduce) the sliver problems, don't you think?

-- 
Ticket URL: <https://trac.osgeo.org/postgis/ticket/4182#comment:7>
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