# File lib/new_relic/agent/sql_sampler.rb, line 291
      def set_primary(slow_sql, path, uri)
        @slow_sql = slow_sql
        @sql = slow_sql.sql
        @database_metric_name = slow_sql.metric_name
        @path = path
        @url = uri
        @params[:backtrace] = slow_sql.backtrace if slow_sql.backtrace
      end