Log warnings on ambiguous name qualification and resolution

In certain cases, MySQL allows ambiguity in referenced names and will register a warning for the query instead of throwing an error. GMS should follow this same behavior for consistency.

An example from [MySQL's `SELECT` Reference Documentation](https://dev.mysql.com/doc/refman/8.0/en/select.html):
> If the HAVING clause refers to a column that is ambiguous, a warning occurs. In the following statement, col2 is ambiguous because it is used as both an alias and a column name:
> `SELECT COUNT(col1) AS col2 FROM t GROUP BY col2 HAVING col2 = 2;`