SelectWithUnionQuery (children 1)
 ExpressionList (children 1)
  SelectQuery (children 3)
   ExpressionList (children 1)
    Function makeDate (children 1)
     ExpressionList (children 3)
      Identifier year
      Identifier month
      Identifier day
   TablesInSelectQuery (children 1)
    TablesInSelectQueryElement (children 1)
     TableExpression (children 1)
      Subquery (children 1)
       SelectWithUnionQuery (children 1)
        ExpressionList (children 2)
         SelectQuery (children 1)
          ExpressionList (children 3)
           Literal NULL (alias year)
           Literal UInt64_2 (alias month)
           Literal UInt64_3 (alias day)
         SelectQuery (children 1)
          ExpressionList (children 3)
           Literal NULL (alias year)
           Literal UInt64_2 (alias month)
           Literal UInt64_3 (alias day)
   ExpressionList (children 3)
    OrderByElement (children 1)
     Identifier year
    OrderByElement (children 1)
     Identifier month
    OrderByElement (children 1)
     Identifier day