简体繁体 English

MySQL 枚举性能比 INT 慢吗？

[英]Is MySQL enum performance slower than INT?

原文 2010-12-26 08:40:52 2 1 mysql/ enums

Is it better to have a field status enum('active', 'hidden', 'deleted') OR status tinyint(3) with a lookup table?有一个带有查找表的字段status enum('active', 'hidden', 'deleted')或status tinyint(3)是否更好？ Assume that status can take only one value at a time.假设状态一次只能取一个值。

In particular, I am interested in knowing if operations on enum are significantly slower than or as fast as operations on int ?特别是，我想知道enum上的操作是否比int操作明显慢或一样快？

There is a related question on SO but: SO上有一个相关的问题，但是：

It does not discuss performance at all;它根本不讨论性能；
There is very little explanation on why one approach is better than the other.关于为什么一种方法比另一种方法更好的解释很少。

1 个解决方案

This is already discussed on popular http://www.mysqlperformanceblog.com , check out this post:这已经在流行的http://www.mysqlperformanceblog.com上讨论过，看看这篇文章：

Enum Fields VS Varchar VS Int + Joined table: What is Faster? 枚举字段 VS Varchar VS Int + 连接表：什么是更快？

为什么 MySql 8.0.17 Select 查询性能比 Mysql 5.7.26 慢？ - why MySql 8.0.17 Select query performance is slower than Mysql 5.7.26?

MySQL *带有*索引会降低性能？ - MySQL slower performance *with* indexes?

Redis 比 MySQL 慢 - Redis slower than MySQL

MySQL Enum的性能优势？ - MySQL Enum performance advantage?

MySQL 枚举 VS INT - MySQL ENUM VS INT

MySQL到旧版MariaDB-性能降低 - MySQL to older MariaDB - slower performance

为什么ENUM优于INT - Why is ENUM better than INT

MariaDB Group by 比 MySQL 慢 - MariaDB Group by Slower than MySQL

问题：Mysql 将 Enum 转换为 Int - ISSUE: Mysql converting Enum to Int

虚拟服务器上的MySQL性能要慢得多 - Much slower MySQL performance on virtualized server

暂无

暂无

声明:本站的技术帖子网页，遵循CC BY-SA 4.0协议，如果您需要转载，请注明本站网址或者原文地址。任何问题请咨询:yoyou2525@163.com.

相关问题 为什么 MySql 8.0.17 Select 查询性能比 Mysql 5.7.26 慢？ - why MySql 8.0.17 Select query performance is slower than Mysql 5.7.26? MySQL *带有*索引会降低性能？ - MySQL slower performance *with* indexes? Redis 比 MySQL 慢 - Redis slower than MySQL MySQL Enum的性能优势？ - MySQL Enum performance advantage? MySQL 枚举 VS INT - MySQL ENUM VS INT MySQL到旧版MariaDB-性能降低 - MySQL to older MariaDB - slower performance 为什么ENUM优于INT - Why is ENUM better than INT MariaDB Group by 比 MySQL 慢 - MariaDB Group by Slower than MySQL 问题：Mysql 将 Enum 转换为 Int - ISSUE: Mysql converting Enum to Int 虚拟服务器上的MySQL性能要慢得多 - Much slower MySQL performance on virtualized server

相关标签

粤ICP备18138465号 © 2020-2024 STACKOOM.COM