While rare in OLAP use cases, the need to modify data is sometimes unavoidable. ClickHouse performs best on immutable data, and any design pattern which requires data to be updated post-insert should be reviewed carefully. That said, ClickHouse provides two mechanisms for modifying data in place:
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我的工作重点始终集中在标准库中的datetime和time::chrono模块，这两个模块主要由我编写并计划长期维护。这些模块同样采用了独特的设计思路。