Add prefix param to the star macro

[camerondavison]

Describe the feature

Sometimes when you want to include all of the columns of another table it can be useful to prefix them all as well with something. So that if I include a pets table the table may have the columns name,age and you may want to join it to a people table that also hase name,age and you want to end up with a result that is name,age,pet_name,pet_age or something like that.

Describe alternatives you've considered

Alternatively you have to reimplement the star macro by iterating all the columns and adding the prefix.

Are you interested in contributing this feature?

I created a patch of the star command, to work with my postgres db, so I would be willing to contribute it. I would need help knowing how to test it on multiple databases using the code base.

[joellabes]

I think that this is a dupe of #436 so I'm going to close it out! Let me know if that's not the case.

[joellabes]

Was a bit premature in closing this! Haven't actually merged the code yet 😅