[postgis-tickets] [PostGIS] #4252: Revise gidx_merge behavior with unknown

[PostGIS]

#4252: Revise gidx_merge behavior with unknown
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  Reporter:  komzpa       |      Owner:  Komzpa
      Type:  enhancement  |     Status:  assigned
  Priority:  medium       |  Milestone:  PostGIS 3.0.2
 Component:  postgis      |    Version:  master
Resolution:               |   Keywords:
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Comment (by pramsey):

 No, I don't think that works, since then you end up with EMPTY in the
 index that are basically non-findable. An empty key is not consistent with
 any node, so an index search always returns no results. The index needs a
 place to put empty things...

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Ticket URL: <https://trac.osgeo.org/postgis/ticket/4252#comment:5>
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