i think latest connector will support, and few restrictions aswell.
"The “SELECT *” statement can be added manually in the SOQL Query text box to select all fields in the table. The SOQL query language does not support the “SELECT *” statement, but the Salesforce Connector has been enhanced to recognize that syntax. Only asterisks (*) and simple field names can be used in the SELECT statement. Qualified field names, such as “Contact.FirstName,” are not permitted. The “SELECT *” statement can only be used when Bulk is selected."