[postgis-tickets] [PostGIS] #5118: DropTopology: ERROR: update or delete on table "topology" violates foreign key constraint "layer_topology_id_fkey" on table "layer"

[PostGIS]

#5118: DropTopology: ERROR:  update or delete on table "topology" violates foreign
key constraint "layer_topology_id_fkey" on table "layer"
-----------------------+---------------------------
  Reporter:  strk      |      Owner:  strk
      Type:  defect    |     Status:  new
  Priority:  medium    |  Milestone:  PostGIS 3.3.0
 Component:  topology  |    Version:  3.2.x
Resolution:            |   Keywords:
-----------------------+---------------------------

Comment (by strk):

 The reason why relation table is not cleaner up is because both relation
 cleanup and sequence removal are in the same sub-transaction, and the
 absence of the sequence rollsback the relation table cleanup:
 {{{
 xxx=# SELECT topology.DropTopoGeometryColumn('features', 'land_parcels',
 'feature');
 WARNING:  Executing: DELETE FROM city_data.relation WHERE layer_id = $1
 WARNING:  $1 is city_data
 WARNING:  Executing: DROP SEQUENCE city_data.topogeo_s_1
 WARNING:  $1 is city_data
 WARNING:  $2 is 1
 NOTICE:  sequence "topogeo_s_1" does not exist
 }}}

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Ticket URL: <https://trac.osgeo.org/postgis/ticket/5118#comment:7>
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