2023-06-27 myql5.7-Switchable Optimizations

财阀悟世 • 2023年06月28日 06:15 • 2年前 • 编程日记 • 阅读(3) • 违法举报

MySQL :: MySQL 5.7 Reference Manual :: 8.9.2 Switchable Optimizations

8.9.2 Switchable Optimizations

The optimizer_switch system variable enables control over optimizer behavior. Its value is a set of flags, each of which has a value of on or off to indicate whether the corresponding optimizer behavior is enabled or disabled. This variable has global and session values and can be changed at runtime. The global default can be set at server startup.

To see the current set of optimizer flags, select the variable value:文章来源地址https://uudwc.com/A/0npvZ

mysql> SELECT @

原文地址:https://blog.csdn.net/adofsauron/article/details/131426775

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