Layer Estimates:

Layer: WorldCities 到 States 的聚合 (ID:0)
Count: 50
Extent:

XMin: -178.217597961577
YMin: 24.9563770293765
XMax: -66.9692707061781
YMax: 71.4062366486025
Spatial Reference: 4326 (4326)

Layer: AggregatedGroupBy (ID:1)
Count: 84