下面是我的对stream层生成的JSON(的DynamoDB部分): "sandbox": { "Properties": { "AttributeDefinitions": [ { "AttributeName": "audit_id", "AttributeType": "S" }, { "AttributeName": "status", "AttributeType": "S" }, { "AttributeName": "filename", "AttributeType": "S" }, { "AttributeName": "file_detected_dt", "AttributeType": "S" }, { "AttributeName": "time_taken", "AttributeType": "N" }, { "AttributeName": "number_rows_processed_file", "AttributeType": "N" }, { "AttributeName": "number_rows_created_db", "AttributeType": "N" }, { "AttributeName": "info_messages", "AttributeType": "S" } […]