nosql - How to implement pagination when using amazon Dynamo DB in rails

Question

I want to use amazon Dynamo DB with rails.But I have not found a way to implement pagination.

I will use AWS::Record::HashModel as ORM.

This ORM supports limits like this:

People.limit(10).each {|person| ... } 

But I could not figured out how to implement following MySql query in Dynamo DB.

SELECT * 
  FROM  `People` 
 LIMIT 1 , 30

Answer 1

You issue queries using LIMIT. If the subset returned does not contain the full table, a LastEvaluatedKey value is returned. You use this value as the ExclusiveStartKey in the next query. And so on...

From the DynamoDB Developer Guide.