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Mysql 解释性能模式计数_Mysql_Performance_Mysql 8.0 - Fatal编程技术网

Mysql 解释性能模式计数

Mysql 解释性能模式计数,mysql,performance,mysql-8.0,Mysql,Performance,Mysql 8.0,你能解释一下吗 performance_schema events_statements_summary_by_digest count_start ? 我在文档中发现了这一点,但我很难理解 COUNT_STAR The number of summarized events. This value includes all events, whether timed or nontimed. 谢谢 定义中到底有什么不清楚?@Shadow现在一切正常,21562下的所有laravel查询

你能解释一下吗

performance_schema events_statements_summary_by_digest count_start 
?

我在文档中发现了这一点,但我很难理解

COUNT_STAR

The number of summarized events. This value includes all events, whether timed or nontimed.

谢谢

定义中到底有什么不清楚?@Shadow现在一切正常,21562下的所有laravel查询都消失了,所以我找不到真正的查询。那么count star是运行查询的次数?请提供类似的内容,以便我们进一步讨论(并提供文本,而不是图像):
select*from performance\u schema.events\u statements\u summary\u by\u digest count\u start LIMIT 2\G
那么这是查询在执行之前等待的时间事件吗,或者这些时间是查询导致的事件,比如它让其他事情等待。
COUNT_STAR

The number of summarized events. This value includes all events, whether timed or nontimed.