The `SqlOperator` has a slightly different use-case than the `GenericTransfer` operator, but they both similarly abstract the `DbApiHook` from the operator via `BaseHook.get_hook(..)`, hence why we don't have a `PostgresGenericTransfer`, `MySqlGenericTransfer`, or etc.. `SqlOperator` isn't intended to fetch any rows from the database, just execute SQL with either success/failure.
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