[postgis-tickets] [PostGIS] #2382: Can't upgrade postgis ERROR: attempt to redefine parameter "postgis.backend"

[PostGIS]

#2382: Can't upgrade postgis ERROR: attempt to redefine parameter
"postgis.backend"
------------------------------------+---------------------------------------
  Reporter:  robe                   |       Owner:  pramsey      
      Type:  defect                 |      Status:  reopened     
  Priority:  blocker                |   Milestone:  PostGIS 2.2.0
 Component:  build/upgrade/install  |     Version:  trunk        
Resolution:                         |    Keywords:               
------------------------------------+---------------------------------------

Comment(by strk):

 Here is how I test:
 {{{
 make -C topology check RUNTESTFLAGS='-v --extension --upgrade-path 2.1.2--
 2.2.0dev'
 }}}

 And the output:
 {{{
 Creating database 'postgis_reg'
 Preparing db 'postgis_reg' using: CREATE EXTENSION postgis VERSION '2.1.2'
 Upgrading PostGIS in 'postgis_reg' using: ALTER EXTENSION postgis UPDATE
 TO '2.2.0dev'
  failed (Error encountered altering EXTENSION POSTGIS:
 /tmp/pgis_reg/regress_log)
 -----------------------------------------------------------------------------
 createlang: language "plpgsql" is already installed in database
 "postgis_reg"
 CREATE EXTENSION
 CREATE EXTENSION
 ERROR:  attempt to redefine parameter "postgis.backend"
 -----------------------------------------------------------------------------
 Died at ../../regress/run_test.pl line 1286.
 }}}

-- 
Ticket URL: <http://trac.osgeo.org/postgis/ticket/2382#comment:26>
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