class method self.new_client

# File activerecord/lib/active_record/connection_adapters/postgresql_adapter.rb, line 68
        def new_client(conn_params)
          PG.connect(**conn_params)
        rescue ::PG::Error => error
          if conn_params && conn_params[:dbname] == "postgres"
            raise ActiveRecord::ConnectionNotEstablished, error.message
          elsif conn_params && conn_params[:dbname] && error.message.include?(conn_params[:dbname])
            raise ActiveRecord::NoDatabaseError.db_error(conn_params[:dbname])
          elsif conn_params && conn_params[:user] && error.message.include?(conn_params[:user])
            raise ActiveRecord::DatabaseConnectionError.username_error(conn_params[:user])
          elsif conn_params && conn_params[:host] && error.message.include?(conn_params[:host])
            raise ActiveRecord::DatabaseConnectionError.hostname_error(conn_params[:host])
          else
            raise ActiveRecord::ConnectionNotEstablished, error.message
          end
        end