3 ms·
So how do they do aggregations then?
by winrid 8y ago
So how do they do aggregations then?
- zip1234 8y agoNot encrypted in memory, just on disk.
- erik_seaberg 8y agoThey don't; DynamoDB is a partitioned document store. You can query for a range of a sorted key but it just gives you the documents in that range. And I'm a little fuzzy on KMS but I believe the entire table is encrypted with one key, so if they could do SUM(x) GROUP BY y if they wanted to take the scaling hit.