qyoz commented on issue #1797: Add Ability to Save Results from Previous 
Queries Using S3
URL: 
https://github.com/apache/incubator-superset/issues/1797#issuecomment-389819897
 
 
   Because on a large scale, this would be abusive.
   Here is the use case in a little more detail.
   We have a database which stores user configurations. We want to know how 
many users have feature X enabled at this point in time, but we also want to 
compare it with how many users had feature X enabled yesterday (and a week ago, 
etc).
   This isn't an event database, its closer to a metadata database, so 
essentially, we want to query snapshots of its state.
   
   Consider doing this using CTAS, the database would become bloated very 
quickly.
   We could also create dedicated snapshots of this DB, but for large instances 
this can become a costly operation.
   
   My thought was to have a "save result" feature where you could slice on a 
saved results set.
   This way we could show and compare today's data with the saved results.
   

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