lookup_sql_cache

# File activerecord/lib/active_record/connection_adapters/abstract/query_cache.rb, line 271
        def lookup_sql_cache(sql, name, binds)
          key = binds.empty? ? sql : [sql, binds]

          result = nil
          @lock.synchronize do
            result = query_cache[key]
          end

          if result
            ActiveSupport::Notifications.instrument(
              "sql.active_record",
              cache_notification_info(sql, name, binds)
            )
          end

          result
        end