[postgis-devel] [PostGIS] #101: ST_Union on one-row table doesn't union

[PostGIS]

#101: ST_Union on one-row table doesn't union
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  Reporter:  pramsey  |       Owner:  pramsey      
      Type:  defect   |      Status:  closed       
  Priority:  medium   |   Milestone:  PostGIS 1.4.0
 Component:  postgis  |     Version:  1.4          
Resolution:  invalid  |    Keywords:               
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Old description:

> '''What steps will reproduce the problem?'''
> 1. Make a table with a single row including a multipolygon with
> overlapping parts.
> 2. Run ST_Union on it.

New description:

 '''What steps will reproduce the problem?'''
 1. Make a table with a single row including a multipolygon with
 overlapping parts.
 2. Run ST_Union on it.

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Comment(by strk):

 I've completed work to expose the UnaryUnion to GEOS C-API, and about to
 start the PostGIS side of this.

 For the sake of simplicity I'll introduce a new entry-point
 (ST_UnaryUnion).
 This will be in trunk.

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Ticket URL: <http://trac.osgeo.org/postgis/ticket/101#comment:15>
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