SelectWithUnionQuery (children 1)
 ExpressionList (children 1)
  SelectQuery (children 1)
   ExpressionList (children 1)
    Function CAST (children 1)
     ExpressionList (children 2)
      Function materialize (children 1)
       ExpressionList (children 1)
        Literal \'{"a" : {"b" : {"c" : {"d" : 42}, "e" : 43}, "f" : 44}, "g" : 44}\'
      Literal \'JSON\'
