[Feature] dataset 支持部分更新

[ljianc]

What problem does this feature solve?

1 修改或删除dataset中的某条数据，目前只能替换整个dataset吗？ 2 如果数据量多的话，这样频繁替换会有性能问题吗？

What does the proposed API look like?

有计划支持部分更新或删除吗

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What problem does this feature solve?

1 To modify or delete a piece of data in the dataset, can only the entire dataset be replaced at present? 2 If there is a large amount of data, will there be a performance problem with such frequent replacement?

What does the proposed API look like?

Are there plans to support partial updates or deletions?