SelectWithUnionQuery (children 1)
 ExpressionList (children 1)
  SelectQuery (children 4)
   ExpressionList (children 1)
    WithElement (children 1)
     Subquery (children 1)
      SelectWithUnionQuery (children 1)
       ExpressionList (children 1)
        SelectQuery (children 5)
         ExpressionList (children 2)
          Identifier n
          Literal NULL (alias b)
         TablesInSelectQuery (children 1)
          TablesInSelectQueryElement (children 1)
           TableExpression (children 1)
            TableIdentifier with_test
         Function or (children 1)
          ExpressionList (children 2)
           Function equals (children 1)
            ExpressionList (children 2)
             Identifier n
             Literal UInt64_42
           Function isNull (children 1)
            ExpressionList (children 1)
             Identifier b
         ExpressionList (children 1)
          OrderByElement (children 1)
           Identifier n
         Literal UInt64_100
   ExpressionList (children 1)
    Function max (children 1)
     ExpressionList (children 1)
      Identifier n
   TablesInSelectQuery (children 1)
    TablesInSelectQueryElement (children 1)
     TableExpression (children 1)
      TableIdentifier test1
   Function equals (children 1)
    ExpressionList (children 2)
     Identifier n
     Literal UInt64_42
