我有一个由应用程序的多个实例每10秒生成的指标。如何计算实例的总和？以下是我的数据示例。
time app_name instance_index value
2018-10-14T07:48:45.20924Z 5324c164-99f8-4f17-92cc-7d3fca746eea 1 2
2018-10-14T07:48:46.27947Z 5324c164-99f8-4f17-92cc-7d3fca746eea 0 3
2018-10-14T07:48:55.283279Z 5324c164-99f8-4f17-92cc-7d3fca746eea 1 3
2018-10-14T07:48:56.413086Z 5324c164-99f8-4f17-92cc-7d3fca746eea 0 3
2018-10-14T07:49:05.370612Z 5324c164-99f8-4f17-92cc-7d3fca746eea 1 3
2018-10-14T07:49:06.541309Z 5324c164-99f8-4f17-92cc-7d3fca746eea 0 3
2018-10-14T07:49:15.455037Z 5324c164-99f8-4f17-92cc-7d3fca746eea 1 3
2018-10-14T07:49:16.651395Z 5324c164-99f8-4f17-92cc-7d3fca746eea 0 3
2018-10-14T07:49:25.539104Z 5324c164-99f8-4f17-92cc-7d3fca746eea 1 3
2018-10-14T07:49:26.762285Z 5324c164-99f8-4f17-92cc-7d3fca746eea 0 3
正确的方法是每10秒创建一个10秒的窗口，然后取数据总和吗？