neeral85

check DATETIME with ='' is not possible since mysql 8.0.16

6

#### Issue some filed of type DATETIME are checked of empty values. This is done with `(filed IS NULL OR field ='')` example (contacts of Targets - Lists): ``` SELECT...

as mentioned here [BUG #18615: installer cannot be executed as "nt-autorität\system"](https://www.postgresql.org/message-id/18615-4bc7fdf205fa1a83%40postgresql.org) it looks like installer does set incorrect file permission on temp folder. 16.2 installer works, 16.4 installer does not...