[postgis-tickets] [PostGIS] #4991: st_union of single row should keep the row intact

[PostGIS]

#4991: st_union of single row should keep the row intact
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  Reporter:  michal   |      Owner:  pramsey
      Type:  defect   |     Status:  closed
  Priority:  medium   |  Milestone:  PostGIS 3.1.5
 Component:  postgis  |    Version:  3.1.x
Resolution:  invalid  |   Keywords:
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Changes (by komzpa):

 * status:  new => closed
 * resolution:   => invalid


Comment:

 Result of single-row ST_Union can also be identical to result of
 ST_UnaryUnion. It is also documented that ST_Union will perform Cascaded
 Union on your input https://postgis.net/docs/ST_Union.html

 If you need to keep your linestring simple because there's more semantics
 to it, use appropriate functions like ST_Collect that don't modify
 elements.

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Ticket URL: <https://trac.osgeo.org/postgis/ticket/4991#comment:2>
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