connect

# File activerecord/lib/active_record/connection_adapters/postgresql_adapter.rb, line 650
        def connect
          @connection = PGconn.connect(@connection_parameters)

          # Money type has a fixed precision of 10 in PostgreSQL 8.2 and below, and as of
          # PostgreSQL 8.3 it has a fixed precision of 19. PostgreSQLColumn.extract_precision
          # should know about this but can't detect it there, so deal with it here.
          OID::Money.precision = (postgresql_version >= 80300) ? 19 : 10

          configure_connection
        rescue ::PG::Error => error
          if error.message.include?("does not exist")
            raise ActiveRecord::NoDatabaseError.new(error.message, error)
          else
            raise
          end
        end