[postgis-tickets] [PostGIS] #4847: ST_Union(topogeometry, topogeometry)

[PostGIS]

#4847: ST_Union(topogeometry, topogeometry)
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  Reporter:  robe         |      Owner:  strk
      Type:  enhancement  |     Status:  new
  Priority:  medium       |  Milestone:  PostGIS 3.2.0
 Component:  topology     |    Version:  2.5.x
Resolution:               |   Keywords:
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Comment (by strk):

 Regina: I've actually started a work basically DOING this in #4851, named
 'toTopoGeom'. But while I was adding documentation I realized `toTopoGeom`
 is probably NOT a good name, while ST_Union might. This is because
 toTopoGeom is documented to "convert simple geometry into a topo geometry"
 while what I'm doing
 (https://gitlab.com/postgis/postgis/-/merge_requests/20) doesn't do any
 conversion, rather it does an actual Union.

 Now I've mixed feelings about the ST prefix though, because under the
 `topology` schema all ST prefixed functions do actually follow the ISO
 SQL/MM standard and it would be annoying to add exceptions (although I
 think it would not be the first one, given we do have ST_Simplify for
 TopoGeometry).

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Ticket URL: <https://trac.osgeo.org/postgis/ticket/4847#comment:1>
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