solution 1
SET SQL_SAFE_UPDATES=0;
solution 2
-> Edit -> Preferences -> Sql Editor then uncheck Safe update.
Error Code: 1175. You are using safe update mode and you tried to update a table without a WHERE that uses a KEY column. To disable safe mode, toggle the option in Preferences
原文：https://www.cnblogs.com/xiluhua/p/14047300.html
