[postgis-tickets] [PostGIS] #2658: ERROR: attempt to redefine parameter "postgis.backend"

[PostGIS]

#2658: ERROR:  attempt to redefine parameter "postgis.backend"
-----------------------------------+----------------------------------------
 Reporter:  strk                   |       Owner:  strk         
     Type:  defect                 |      Status:  new          
 Priority:  medium                 |   Milestone:  PostGIS 2.1.2
Component:  build/upgrade/install  |     Version:  2.1.x        
 Keywords:                         |  
-----------------------------------+----------------------------------------
 Upgrading, via extension, from 2.1.0 to 2.2.0dev:
 {{{
 [strk at cdb:/usr/src/postgis/postgis(svn-trunk)] regress/run_test.pl -v
 regress/tickets.sql --extensions --upgrade-path 2.1.0--2.2.0dev
 Upgrade path: 2.1.0 --> 2.2.0dev
 Creating database 'postgis_reg'
 Preparing db 'postgis_reg' using: CREATE EXTENSION postgis VERSION '2.1.0'
 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
 ERROR:  attempt to redefine parameter "postgis.backend"
 -----------------------------------------------------------------------------
 Died at regress/run_test.pl line 1265.
 }}}

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Ticket URL: <http://trac.osgeo.org/postgis/ticket/2658>
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