{"id":"dynamodb-s3-import-duplicate-keys-last-write-wins","text":"Duplicate primary keys in DynamoDB S3 imports cause overwrites — only one item per key survives, in random order; duplicates are not counted as errors.","truth_value":"IN","source":"entries/2026/03/11/amazondynamodb-latest-developerguide-S3DataImportHowItWorkshtml.md","source_url":"","source_hash":"2acbaf2c5d8fe1e8","justifications":[],"dependents":[],"metadata":{},"explanation":{"steps":[{"node":"dynamodb-s3-import-duplicate-keys-last-write-wins","truth_value":"IN","reason":"premise"}]}}