name: sessions_sum
datasource: default
label: 登录会话统计
query: |-
  {
      "collection": "sessions",
      "aggregate": [
          {
              "$project": {
                  "登录会话总数": 1
              }
          },
          {
              "$group": {
                  "_id": "$space",
                  "登录会话总数": {
                      "$sum": 1
                  }
              }
          }
      ]
  }