Attached is a list of 50 instances where the values in the key subdocument repeat for the same host and server timestamp.
The metrics are different, i.e., the server thinks the observations belong to different query shapes. Unfortunately, the key subdocument doesn't capture this difference.
https://docs.google.com/spreadsheets/d/1iYBVBSWg4rDeDdDIfzYISvnAfQblo322iYMOlQ2FDkY/edit#gid=1775716346