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MySQL 8.3 Reference Manual  /  ...  /  Replication and Floating-Point Values

19.5.1.12 复制和浮点值

使用基于语句的复制时，值将从十进制转换为二进制。由于十进制和二进制表示形式之间的转换可能是近似的，因此涉及浮点值的比较是近似的。这适用于明确使用浮点值的操作，也适用于隐式将值转换为浮点值的操作。由于计算机架构、编译器等差异，浮点值的比较结果可能在源服务器和副本服务器上不同。请参阅 第 14.3 节，“表达式求值中的类型转换” 和 B.3.4.8 节，“浮点值的问题”。


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Related Documentation
MySQL 8.3 Release Notes
Download this Manual
PDF (US Ltr) - 40.8Mb
PDF (A4) - 40.9Mb
Man Pages (TGZ) - 294.0Kb
Man Pages (Zip) - 409.0Kb
Info (Gzip) - 4.0Mb
Info (Zip) - 4.0Mb
Excerpts from this Manual
MySQL Backup and Recovery
MySQL NDB Cluster 8.3
MySQL Globalization
MySQL Information Schema
MySQL Installation Guide
MySQL and Linux/Unix
MySQL and macOS
MySQL Partitioning
MySQL Performance Schema
MySQL Replication
Using the MySQL Yum Repository
MySQL Restrictions and Limitations
Security in MySQL
MySQL and Solaris
Building MySQL from Source
Starting and Stopping MySQL
MySQL Tutorial
MySQL and Windows