after updating pg gem to 0.13.0 got following error on production server (rails 3.2.1 + unicorn): "Use of uninitialized PG::Connection. (fatal)", here is some trace from unicorn_error.log:
/srv/site/shared/bundle/ruby/1.9/gems/activerecord-3.2.1/lib/ active_record/connection_adapters/postgresql_adapter.rb:355:in `finish': Use of uninitialized PG::Connection. (fatal) from /srv/site/shared/bundle/ruby/1.9/gems/activerecord-3.2.1/lib/ active_record/connection_adapters/postgresql_adapter.rb:355:in `disconnect!' from /srv/site/shared/config/unicorn.rb:26:in `block in reload' from /srv/site/shared/bundle/ruby/1.9/gems/unicorn-4.2.0/lib/unicorn/ http_server.rb:482:in `call' from /srv/site/shared/bundle/ruby/1.9/gems/unicorn-4.2.0/lib/unicorn/ http_server.rb:482:in `spawn_missing_workers' from /srv/site/shared/bundle/ruby/1.9/gems/unicorn-4.2.0/lib/unicorn/ http_server.rb:137:in `start' from /srv/site/shared/bundle/ruby/1.9/gems/unicorn-4.2.0/bin/ unicorn_rails:209:in `<top (required)>' from /srv/site/shared/bundle/ruby/1.9/bin/unicorn_rails:19:in `load' from /srv/site/shared/bundle/ruby/1.9/bin/unicorn_rails:19:in `<main>' /srv/site/shared/bundle/ruby/1.9/gems/activerecord-3.2.1/lib/ active_record/connection_adapters/postgresql_adapter.rb:355:in `finish': Use of uninitialized PG::Connection. (fatal) from /srv/site/shared/bundle/ruby/1.9/gems/activerecord-3.2.1/lib/ active_record/connection_adapters/postgresql_adapter.rb:355:in `disconnect!' from /srv/site/shared/bundle/ruby/1.9/gems/activerecord-3.2.1/lib/ active_record/connection_adapters/abstract/connection_pool.rb:134:in `block (2 levels) in disconnect!' from /srv/site/shared/bundle/ruby/1.9/gems/activerecord-3.2.1/lib/ active_record/connection_adapters/abstract/connection_pool.rb:132:in `each' from /srv/site/shared/bundle/ruby/1.9/gems/activerecord-3.2.1/lib/ active_record/connection_adapters/abstract/connection_pool.rb:132:in `block in disconnect!' from /usr/local/lib/ruby/1.9/monitor.rb:211:in `mon_synchronize' from /srv/site/shared/bundle/ruby/1.9/gems/activerecord-3.2.1/lib/ active_record/connection_adapters/abstract/connection_pool.rb:130:in `disconnect!' from /srv/site/shared/bundle/ruby/1.9/gems/activerecord-3.2.1/lib/ active_record/connection_adapters/abstract/connection_pool.rb:394:in `remove_connection' from /srv/site/shared/bundle/ruby/1.9/gems/activerecord-3.2.1/lib/ active_record/connection_adapters/abstract/connection_specification.rb: 177:in `remove_connection' from /srv/site/shared/bundle/ruby/1.9/gems/activerecord-3.2.1/lib/ active_record/connection_adapters/abstract/connection_specification.rb: 133:in `establish_connection' from /srv/site/shared/config/unicorn.rb:39:in `block in reload' from /srv/site/shared/bundle/ruby/1.9/gems/unicorn-4.2.0/lib/unicorn/ http_server.rb:563:in `call' from /srv/site/shared/bundle/ruby/1.9/gems/unicorn-4.2.0/lib/unicorn/ http_server.rb:563:in `init_worker_process' from /srv/site/shared/bundle/ruby/1.9/gems/unicorn-4.2.0/lib/unicorn/ http_server.rb:587:in `worker_loop' from /srv/site/shared/bundle/ruby/1.9/gems/unicorn-4.2.0/lib/unicorn/ http_server.rb:487:in `spawn_missing_workers' from /srv/site/shared/bundle/ruby/1.9/gems/unicorn-4.2.0/lib/unicorn/ http_server.rb:137:in `start' from /srv/site/shared/bundle/ruby/1.9/gems/unicorn-4.2.0/bin/ unicorn_rails:209:in `<top (required)>' from /srv/site/shared/bundle/ruby/1.9/bin/unicorn_rails:19:in `load' from /srv/site/shared/bundle/ruby/1.9/bin/unicorn_rails:19:in `<main>'
no code from pg gem present in the trace had to rollback to pg 0.12.2
has anyone used 0.13.0 successfully?