[PostGIS] #5734: Wrong ST_EstimatedExtent result for geography column

[PostGIS]

#5734: Wrong ST_EstimatedExtent result for geography column
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  Reporter:  strk     |      Owner:  pramsey
      Type:  defect   |     Status:  new
  Priority:  medium   |  Milestone:  PostGIS 3.4.3
 Component:  postgis  |    Version:  3.4.x
Resolution:           |   Keywords:
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Comment (by strk):

 The index-mediated return is also NULL, even if an index is present:
 {{{
 strk=# \d qgis_issue_30294
                                    Table "public.qgis_issue_30294"
  Column |         Type          | Collation | Nullable |
 Default
 --------+-----------------------+-----------+----------+----------------------------------------------
  id     | integer               |           | not null |
 nextval('qgis_issue_30294_id_seq'::regclass)
  g      | geography(Point,4326) |           |          |
 Indexes:
     "qgis_issue_30294_pkey" PRIMARY KEY, btree (id)
     "qgis_issue_30294_g_idx" gist (g)

 strk=# select _postgis_index_extent('qgis_issue_30294', 'g');
  _postgis_index_extent
 -----------------------

 (1 row)
 }}}
-- 
Ticket URL: <https://trac.osgeo.org/postgis/ticket/5734#comment:1>
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