db> db.createView( "view1" , "something" ,[]) { ok: 1 } db> db.createView( "view2" , "system.buckets.time" ,[]) { ok: 1 } db> show collections view1 [view] view2 [time-series] <----- looks like a valid time series but it's not system.views db> db.createCollection( "time" ,{timeseries:{timeField: "time" }}) { ok: 1 } db> show collections time [time-series] <---- this makes view2 to disappear although still being present in the system.views view1 [view] system.buckets.time system.views db> db.time.drop() true db> show collections view1 [view] view2 [time-series] <-- dropping "time" brings view2 back to the list system.views