在生产中部署时，我收到此错误，我不明白从5.5.30到哪里来了......但是我在本地（oSX）和远程（Debian）卸载了gem并重新安装了它...所以它应该用最新的库编译.5.6.19
这里安装了MySQL版本......
在Debian上
mysql -u root -p -e 'SHOW VARIABLES LIKE "%version%";'
Enter password:
+-------------------------+-------------------+
| Variable_name | Value |
+-------------------------+-------------------+
| innodb_version | 5.6.19 |
| protocol_version | 10 |
| slave_type_conversions | |
| version | 5.6.19-1~dotdeb.1 |
| version_comment | (Debian) |
| version_compile_machine | x86_64 |
| version_compile_os | debian-linux-gnu |
+-------------------------+-------------------+
yves$ mysql -u root -p -e 'SHOW VARIABLES LIKE "%version%";'
Enter password:
+-------------------------+------------------------------+
| Variable_name | Value |
+-------------------------+------------------------------+
| innodb_version | 5.6.19 |
| protocol_version | 10 |
| slave_type_conversions | |
| version | 5.6.19 |
| version_comment | MySQL Community Server (GPL) |
| version_compile_machine | x86_64 |
| version_compile_os | osx10.7 |
+-------------------------+------------------------------+