DynamoDB Bulk Put Items: Load S3 Data into Existing Tables
Dev Communityvia NewsData.io
With DynamoDB bulk put items you load large amounts of data from S3 straight into a table that already exists and is serving production traffic. Until now that was a gap: import from S3 always created a new table, and for everything else you built your own pipeline with Lambda, Step Functions or Glue, raised capacity and hoped the application would not get throttled in the meantime. Since November 5, 2026, DynamoDB handles this part itself. What interests me most is not the speed but a small detail: every record in the input file can carry its own condition. That makes a nightly sync safe to r
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