安装了mysql5.7.19后，执行语句中只要含有group by 就会报这个错

[Err] 1055 - Expression #1 of ORDER BY clause is not in GROUP BY clause and contains nonaggregated column 'information_schema.PROFILING.SEQ' which is not functionally dependent on columns in GROUP BY clause; this is incompatible with sql_mode=only_full_group_by

网上百度了解决方案大致两种方案，但是没有解决这个问题。

第一种方案是修改my.cnf文件，但是我的数据库安装目录里根本没有这个文件；第二种方案是修改sql_mode，但这不能根本上解决这个问题，重启mysql服务后这个问题又会重复出现。

我的系统是mac，参照第一种方案，修改安装目录里my.ini文件，在[mysqld]后面追加下面这句配置后重启服务解决问题。

#sql_mode=NO_ENGINE_SUBSTITUTION,STRICT_TRANS_TABLES

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