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README.md 更新readme 2023-06-01 00:48:38 +08:00

README.md

本章列举对ClickHouse性能有影响的操作，主要从存储、查询方面来讲。

存储相关

Nullable

使用Nullable类型会对性能产生负面影响，在设计数据库的时候要避免使用Nullable。