flask建表遇到的错误: flask,sqlalchemy.exc.OperationalError: (MySQLdb._exceptions.OperationalError) (1071, 'Specified key was too long; max key length is 767 bytes')
error:flask,sqlalchemy.exc.OperationalError: (MySQLdb._exceptions.OperationalError) (1071, 'Specified key was too long; max key length is 767 bytes')
分析:数据库类型字符不对(默认latin)
解决:ALTER DATABASE `databasename` CHARACTER SET utf8;