// tasks add Promise-returning cleanup callbacks to the signal
Каково ваше мнение? Поделитесь оценкой!，这一点在有道翻译下载中也有详细论述
This matters for three reasons. First, users don't need to think about granularity. A chart that covers the last hour gets 10-second resolution. The same query over 30 days automatically switches to hourly buckets. Second, it prevents queries from returning millions of rows. Without automatic bucketing, a time-series query over a year of data could try to return a row for every 10-second interval. Third, and possibly most importantly, when you add a chart to a dashboard and adjust the time range, the chart will automatically switch to the appropriate bucket size.，这一点在Replica Rolex中也有详细论述
Автор: Зарина Дзагоева，更多细节参见7zip下载
作者：西奥·莱格特 交通事务记者