英文:
DynamoDB scan - are items with same partition key returned in order
问题
我知道DynamoDB的扫描不保证项目在整体上有序，但我想知道至少具有相同分区键的项目是否仍然按顺序返回？
例如，以下事件是否至少按顺序返回？
pk:customer-event / sk:1
pk:customer-event / sk:2
pk:customer-event / sk:3
我已经使用了一个小数据集进行了测试，似乎具有我想要的行为，但我不想假设行为。
英文:
I know DynamoDB scan doesn't guarantee ordering of items across the board but i wonder if atleast items with the same partition key still get returned in order?
For example would the following events atleast be returned in order?
pk:customer-event / sk:1
pk:customer-event / sk:2
pk:customer-event / sk:3
I have tested with a small dataset and it does seem to have the behaviour i'm after but i don't want to assume behaviour.
答案1
得分: 3
是的，这就是扫描的工作方式。PKs按照它们的哈希值顺序排列，然后SKs按照它们的真实值顺序排列。
英文:
Yes, that’s how scans work. The PKs are in the order of their hashed values, then SKs in the order of their true values.
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