One apparent limitation of using ExSQL() in the separation model is that you can't use unrelated tables in a field definition. So you'd need to related all your tables to one another.

 

I just discovered that you can bypass that limitation simply by wrapping your statement in a Let() and declaring a variable that includes wrapping a field in the GetFieldName() function. 

 

 

So the expression:

Let(
field = unrelated::table ;
field
)

returns an error.

 

 

However,

Let(
gfn = GetFieldName ( unrelated::table ) ;
field = unrelated::table ;
field
)

does not.

 

It doesn't even have to be a field from an unrelated table!

 

Interesting and hopefully helpful.

Very good to know.  I haven't run into that yet.  I've mainly been using scripts that include ExecuteSQL, or Conditional Formatting.  

 

I'm sure it saved future-me from having to post a question.