I have a parametric field that is defined as a SET. How can I make a query to include only pages where that field is not empty (without regard for what the specific values are)?
Like other parametric fields types like "String", you can use infield without an operator to look for where the field is nonempty.
So if you wanted to search for "chandelier" where the parametric field "style" is nonempty, your query would be
chandelier infield:style