Automatic trim spaces from hostname

[renecannao]

It was reported the following error generated by ProxySQL:

Unknown MySQL Server Host ' 127.0.0.1' (-2) 

Note the space before 127.0.0.1 . ProxySQL should be able to automatically trim spaces from hostname

[renecannao]

Another option is to implement sqlite constraints to prevent hostname to start or end with spaces.

But the same issue could happen on other fields, like username , schemaname and digest in mysql_query_rules.
Maybe it may be more correct to not trim, but to report a warning/error.