SelectWithUnionQuery (children 1)
 ExpressionList (children 1)
  SelectQuery (children 1)
   ExpressionList (children 1)
    Function initCap (children 1)
     ExpressionList (children 1)
      Function CAST (children 1)
       ExpressionList (children 2)
        Function arrayJoin (children 1)
         ExpressionList (children 1)
          Literal Array_[\'hello world\', \'world hello\']
        Literal \'FixedString(11)\'
