Using Sparse Indexes for Efficient Filtering in DynamoDB

How sparse indexes help you lower cost and make reads more efficient

One of the most common challenges users face in DynamoDB is how to efficiently retrieve subsets of data without having high read costs.

Traditional filtering using FilterExpression on a full table scan is expensive and slow, especially at scale.

This is where sparse indexes come in.

Sparse indexes can dramatically help improve read efficiency by indexing o…