[postgis-tickets] [PostGIS] #5237: postgis_extensions_upgrade fails with ERROR: there is no unique or exclusion constraint matching the ON CONFLICT specification

[PostGIS]

#5237: postgis_extensions_upgrade fails with ERROR: there is no unique or
exclusion constraint matching the ON CONFLICT specification
----------------------+---------------------------
  Reporter:  robe     |      Owner:  pramsey
      Type:  defect   |     Status:  new
  Priority:  medium   |  Milestone:  PostGIS 3.3.2
 Component:  postgis  |    Version:  3.3.x
Resolution:           |   Keywords:
----------------------+---------------------------
Comment (by strk):

 The `ON CONFLICT` construct is new in 3.3.0, as per #5024 and servers the
 purpose of adding missing records while NOT overriding existing records.

 BTW, the NEWS entry is misleading as it says `- #5024, Update
 spatial_ref_sys as part of ALTER EXTENSION update postgis (Paul Ramsey)`
 while there is NEVER an UPDATE (due to `ON CONFLICT DO NOTHING`)
-- 
Ticket URL: <https://trac.osgeo.org/postgis/ticket/5237#comment:6>
PostGIS <http://trac.osgeo.org/postgis/>
The PostGIS Trac is used for bug, enhancement & task tracking, a user and developer wiki, and a view into the subversion code repository of PostGIS project.