Sorting - really? Isn't the first thing to learn about Dynamo the primary key and the sort key? Filtering you can do on the database but you still pay for the r

Sorting - really? Isn't the first thing to learn about Dynamo the primary key and the sort key? Filtering you can do on the database but you still pay for the reads as if it wasn't filtered. To me Dynamos biggest con is that it's propriety technology and aggregations it's just not really any good for.