Querying DynamoDB by date

Question

I\'m coming from a relational database background and trying to work with amazon\'s DynamoDB

I have a table with a hash key \"DataID\" and a range \"CreatedAt\" and

Answer 1

Approach I followed to solve this problem is by created a Global Secondary Index as below. Not sure if this is the best approach but hopefully if it is useful to someone.

Hash Key                 | Range Key
------------------------------------
Date value of CreatedAt  | CreatedAt

Limitation imposed on the HTTP API user to specify the number of days to retrieve data, defaulted to 24 hr.

This way, I can always specify the HashKey as Current date's day and RangeKey can use > and < operators while retrieving. This way the data is also spread across multiple shards.