This SQL in generated even with "none" first drop-down entry, the same as for "all" mode.
Looks like all the hosts are selected.
And in real production it leads to so huge SQLs like:
which we were not able to copy as complete in any way.
The SQL kills our DB performance.
I'm sure that the SQL should not be generated when the mode is "none".
"Zabbix Admin" user level is used, but basically the same applies to Super Admin.
Overview Type -> "Triggers".