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Unknown character set index for field ‘255‘ received from server.
2022-06-23 21:56:00 【喝醉酒的小白】
查看数据库版本为 8.0.1-dmr
准备安装MySQL时,请确定要使用哪个版本和发行格式(二进制或源码)。
首先,决定要安装开发版本还是通用版本(GA)。开发版本具有最新功能,但不建议用于生产环境。GA版本(也称为生产版本或稳定版本)是供生产使用的。
MySQL 8.0中的命名方案使用的发行版名称由三个数字和一个可选的后缀组成(例如, mysql-8.0.1-dmr),版本名称中的数字解释如下:
- 第一个数字(8)是主版本号。- 第二个数字(0)是次要版本号。总而言之,主要和次要数字构成发行版本号。序列号描述了稳定的功能集。- 第三个数字(1)是发行系列中的版本号。对于每个新的错误修正版本,此值均递增。在大多数情况下,系列中的最新版本是最佳选择。
版本名称也可以包含一个后缀,以指示版本的稳定性。在一系列发行中,发布会通过一组后缀来指示稳定性水平如何提高。可能的后缀是:- dmr指示开发里程碑版本(DMR)。MySQL开发使用里程碑模型,其中每个里程碑都引入了一小部分经过全面测试的功能。从一个里程碑到下一个里程碑,基于尝试这些正常发布的社区成员提供的反馈,功能界面可能会更改,甚至功能可能会被删除。里程碑版本中的功能可能被视为具有预生产质量。- rc表示发布候选(RC)。通过了MySQL的所有内部测试后,发布候选版本被认为是稳定的。RC版本中可能仍会引入新功能,但是重点将转移到修复错误上,以稳定本系列中较早引入的功能。- 没有后缀表示具有一般可用性(GA)或正式版。GA版本稳定,已成功通过了较早的发行阶段,并且被认为是可靠的,没有严重的错误并且适合在生产系统中使用。
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