bkyryliuk commented on pull request #12188:
URL:
https://github.com/apache/incubator-superset/pull/12188#issuecomment-754139289
+1 to this comment, we are actively leveraging it
> > What would be an example use case for using CTAS ?
>
> If you mean "why materialize a dataset?", the main reason is to create a
summary and/or richer dataset to speed subsequent queries against this snapshot
>
> If you mean "why using the Superset CTAS feature over simply writing your
own `CREATE TABLE {} AS`" statement, it has to do with administrator/policy
control. It's possible in Superset to NOT give DML access, but allow people to
effectively do this in a controlled way, and even force a target
location/naming scheme for the CTAS-generated table
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