DynamoDB Partitions links

1) Partitions and Data Distribution: https://docs.aws.amazon.com/amazondynamodb/latest/developerguide/HowItWorks.Partitions.html

2) DynamoDB streams: https://docs.aws.amazon.com/amazondynamodb/latest/developerguide/Streams.html

3) DynamoDB streams Boto3: https://boto3.amazonaws.com/v1/documentation/api/latest/reference/services/dynamodbstreams.html

4) Queries with DynamoDB: https://docs.aws.amazon.com/amazondynamodb/latest/developerguide/Query.html