SelectWithUnionQuery (children 2)
 ExpressionList (children 1)
  SelectQuery (children 2)
   ExpressionList (children 1)
    Asterisk
   TablesInSelectQuery (children 1)
    TablesInSelectQueryElement (children 1)
     TableExpression (children 1)
      Subquery (children 1)
       SelectWithUnionQuery (children 1)
        ExpressionList (children 1)
         SelectQuery (children 2)
          ExpressionList (children 1)
           Subquery (alias x) (children 1)
            SelectWithUnionQuery (children 1)
             ExpressionList (children 1)
              SelectQuery (children 2)
               ExpressionList (children 1)
                Literal UInt64_0 (alias x)
               TablesInSelectQuery (children 2)
                TablesInSelectQueryElement (children 1)
                 TableExpression (children 1)
                  Subquery (alias t1) (children 1)
                   SelectWithUnionQuery (children 1)
                    ExpressionList (children 1)
                     SelectQuery (children 1)
                      ExpressionList (children 1)
                       Literal UInt64_1 (alias x)
                TablesInSelectQueryElement (children 2)
                 TableExpression (children 1)
                  Subquery (alias t2) (children 1)
                   SelectWithUnionQuery (children 1)
                    ExpressionList (children 1)
                     SelectQuery (children 1)
                      ExpressionList (children 1)
                       Literal UInt64_1 (alias x)
                 TableJoin (children 1)
                  ExpressionList (children 1)
                   Identifier x
          TablesInSelectQuery (children 1)
           TablesInSelectQueryElement (children 1)
            TableExpression (children 1)
             Subquery (children 1)
              SelectWithUnionQuery (children 1)
               ExpressionList (children 1)
                SelectQuery (children 1)
                 ExpressionList (children 1)
                  Literal UInt64_1 (alias x)
 Identifier Null
