Redmine

When i try export wiki to html or txt on redmine 1.2-stable (CentOS release 5.6) and postgresql (8.1.23) this error occurs.

RuntimeError (Your PostgreSQL connection does not support unescape_bytea. Try upgrading to pg 0.9.0 or later.):
  app/models/wiki_page.rb:97:in `content_for_version'
  app/controllers/wiki_controller.rb:72:in `show'
  passenger (3.0.7) lib/phusion_passenger/rack/request_handler.rb:96:in `process_request'
  passenger (3.0.7) lib/phusion_passenger/abstract_request_handler.rb:513:in `accept_and_process_next_request'
  passenger (3.0.7) lib/phusion_passenger/abstract_request_handler.rb:274:in `main_loop'
  passenger (3.0.7) lib/phusion_passenger/classic_rails/application_spawner.rb:321:in `start_request_handler'
  passenger (3.0.7) lib/phusion_passenger/classic_rails/application_spawner.rb:275:in `send'
  passenger (3.0.7) lib/phusion_passenger/classic_rails/application_spawner.rb:275:in `handle_spawn_application'
  passenger (3.0.7) lib/phusion_passenger/utils.rb:479:in `safe_fork'
  passenger (3.0.7) lib/phusion_passenger/classic_rails/application_spawner.rb:270:in `handle_spawn_application'
  passenger (3.0.7) lib/phusion_passenger/abstract_server.rb:357:in `__send__'
  passenger (3.0.7) lib/phusion_passenger/abstract_server.rb:357:in `server_main_loop'
  passenger (3.0.7) lib/phusion_passenger/abstract_server.rb:206:in `start_synchronously'
  passenger (3.0.7) lib/phusion_passenger/abstract_server.rb:180:in `start'
  passenger (3.0.7) lib/phusion_passenger/classic_rails/application_spawner.rb:149:in `start'
  passenger (3.0.7) lib/phusion_passenger/spawn_manager.rb:219:in `spawn_rails_application'
  passenger (3.0.7) lib/phusion_passenger/abstract_server_collection.rb:132:in `lookup_or_add'
  passenger (3.0.7) lib/phusion_passenger/spawn_manager.rb:214:in `spawn_rails_application'
  passenger (3.0.7) lib/phusion_passenger/abstract_server_collection.rb:82:in `synchronize'
  passenger (3.0.7) lib/phusion_passenger/abstract_server_collection.rb:79:in `synchronize'
  passenger (3.0.7) lib/phusion_passenger/spawn_manager.rb:213:in `spawn_rails_application'
  passenger (3.0.7) lib/phusion_passenger/spawn_manager.rb:132:in `spawn_application'
  passenger (3.0.7) lib/phusion_passenger/spawn_manager.rb:275:in `handle_spawn_application'
  passenger (3.0.7) lib/phusion_passenger/abstract_server.rb:357:in `__send__'
  passenger (3.0.7) lib/phusion_passenger/abstract_server.rb:357:in `server_main_loop'
  passenger (3.0.7) lib/phusion_passenger/abstract_server.rb:206:in `start_synchronously'
  passenger (3.0.7) helper-scripts/passenger-spawn-server:99

*** LOCAL GEMS ***

abstract (1.0.0)
actionmailer (2.3.11, 2.3.5)
actionpack (3.0.7, 2.3.11, 2.3.5)
activemodel (3.0.7)
activerecord (2.3.11, 2.3.5)
activeresource (2.3.11, 2.3.5)
activesupport (3.0.7, 2.3.11, 2.3.5)
acts-as-taggable-on (2.0.6)
arel (2.0.9)
builder (3.0.0, 2.1.2)
bundler (1.0.12)
cgi_multipart_eof_fix (2.5.0)
coderay (0.9.7)
daemon_controller (0.2.6)
daemons (1.1.3)
diff-lcs (1.1.2)
erubis (2.7.0, 2.6.6)
fastthread (1.0.7)
fcgi (0.8.8)
gchart (1.0.0)
gem_plugin (0.2.3)
git (1.2.5)
googlecharts (1.6.2)
hoe (2.9.4)
i18n (0.5.0, 0.4.2)
jeweler (1.6.0)
mail (2.3.0, 2.2.19)
mime-types (1.16)
mini_magick (3.2.1)
mongrel (1.1.5)
mongrel_cluster (1.0.5)
mysql (2.8.1)
passenger (3.0.7)
pg (0.11.0)
polyglot (0.3.1)
postgres-pr (0.6.3)
rack (1.2.3, 1.1.2, 1.0.1)
rack-mount (0.7.2, 0.6.14)
rack-test (0.5.7)
rails (2.3.11, 2.3.5)
railties (3.0.7)
rake (0.8.7)
rcov (0.9.9)
RedCloth (4.2.7, 4.2.3)
redmine_plugin_support (0.0.4)
rmagick (2.13.1)
rspec (2.6.0, 2.5.0)
rspec-core (2.6.3, 2.5.1)
rspec-expectations (2.6.0, 2.5.0)
rspec-mocks (2.6.0, 2.5.0)
rspec-rails (2.6.0)
ruby-ole (1.2.11.1)
rubygems-update (1.7.2)
rubytree (0.8.1, 0.5.2)
rubyzip (0.9.4)
russian (0.2.7)
spreadsheet (0.6.5.4)
sqlite3 (1.3.3)
sqlite3-ruby (1.3.3)
subexec (0.0.4)
thor (0.14.6)
tree (0.2.1)
treetop (1.4.9)
tzinfo (0.3.27)
unicode (0.4.0)
xmpp4r (0.5)
zipruby (0.3.6)

2.3.11

8.1.23