Well, not too fast! In DW 2017 CC on the MAC there is still a problem. I've already reported it before on the 2017 beta version.
When you start a new recordset foor Mysqli ext. and use the advanced windows dialog. You choose a database table, hitting the SELECT button does not do anything. The textfield in the dialog isn't updated with the query.
I've reported it here at webassist ánd a the DW betaforum. I hoped it was fixed with final release, but sadly it isn't!