AWS opens bulk S3 writes into existing DynamoDB tables

Published Thursday, November 5, 2026 · 4:10 PM EST

AWS has made bulk put items generally available for Amazon DynamoDB, allowing developers to write data from Amazon S3 into existing tables without building a custom ingestion pipeline. AWS says the managed feature handles writes without affecting existing workloads. Developers point the service at input files in S3. Each item can carry a condition that enforces insert-only writes or guards against overwriting a different version. The Standard tier is available in all commercial AWS Regions and AWS GovCloud (US) Regions; the Accelerated tier serves more time-sensitive workloads and has separate regional availability.

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