SelectWithUnionQuery (children 1)
 ExpressionList (children 1)
  SelectQuery (children 1)
   ExpressionList (children 2)
    Function translate (alias a) (children 1)
     ExpressionList (children 3)
      Literal \'aAbBcC\'
      Literal \'abc\'
      Function toFixedString (children 1)
       ExpressionList (children 2)
        Literal \'12\'
        Literal UInt64_2
    Function toTypeName (children 1)
     ExpressionList (children 1)
      Identifier a