SelectWithUnionQuery (children 1)
 ExpressionList (children 1)
  SelectQuery (children 1)
   ExpressionList (children 2)
    Function CAST (alias v) (children 1)
     ExpressionList (children 2)
      Literal \'2001:0db8:0000:85a3:0000:0000:ac1f:8001\'
      Literal \'IPv6\'
    Function toTypeName (children 1)
     ExpressionList (children 1)
      Identifier v
