Today, we are launching filtered export for Amazon DynamoDB, so you can export only the items and attributes you need, without consuming any table capacity. Export to Amazon Simple Storage Service (Amazon S3) has written every item in a table since it launched in 2020. Incremental export, added in 2023, writes every item that changed in a time window.
Filtered export adds a FilterSpecification to the same ExportTableToPointInTime request for you to provide the expressions to get only the items and the attributes you want, and the export writes the matching data to S3. It reads from the point-in-time recovery (PITR) backup rather than the table, so it consumes no table capacity and has no effect on production traffic.
In this post, we introduce filtered export and recover a single tenant’s data after a bad deployment with one incremental export instead of a 4 TB restore. We then show two further patterns: sharing a tenant’s history with customer contact…
https://aws.amazon.com/blogs/database/introducing-filtered-export-from-amazon-dynamodb-to-amazon-s3/