SelectWithUnionQuery (children 3)
 ExpressionList (children 1)
  SelectQuery (children 3)
   ExpressionList (children 1)
    WithElement (children 1)
     Subquery (children 1)
      SelectWithUnionQuery (children 1)
       ExpressionList (children 2)
        SelectQuery (children 3)
         ExpressionList (children 1)
          Identifier a (alias n)
         TablesInSelectQuery (children 1)
          TablesInSelectQueryElement (children 1)
           TableExpression (children 1)
            TableIdentifier y
         Function equals (children 1)
          ExpressionList (children 2)
           Identifier a
           Literal UInt64_1
        SelectQuery (children 3)
         ExpressionList (children 1)
          Function plus (children 1)
           ExpressionList (children 2)
            Identifier x.n
            Literal UInt64_1
         TablesInSelectQuery (children 2)
          TablesInSelectQueryElement (children 1)
           TableExpression (children 1)
            TableIdentifier y
          TablesInSelectQueryElement (children 2)
           TableExpression (children 1)
            TableIdentifier x
           TableJoin (children 1)
            Function equals (children 1)
             ExpressionList (children 2)
              Identifier x.n
              Identifier y.a
         Function less (children 1)
          ExpressionList (children 2)
           Identifier n
           Literal UInt64_10
   ExpressionList (children 1)
    Asterisk
   TablesInSelectQuery (children 1)
    TablesInSelectQueryElement (children 1)
     TableExpression (children 1)
      TableIdentifier x
 Identifier NULL
 Set
