SelectWithUnionQuery (children 1)
 ExpressionList (children 1)
  SelectQuery (children 4)
   ExpressionList (children 1)
    Asterisk
   TablesInSelectQuery (children 2)
    TablesInSelectQueryElement (children 1)
     TableExpression (children 1)
      TableIdentifier t_00818
    TablesInSelectQueryElement (children 2)
     TableExpression (children 1)
      TableIdentifier s_00818
     TableJoin (children 1)
      Function equals (children 1)
       ExpressionList (children 2)
        Identifier t_00818.a
        Identifier s_00818.a
   Function equals (children 1)
    ExpressionList (children 2)
     Identifier s_00818.a
     Literal UInt64_1
   ExpressionList (children 1)
    OrderByElement (children 1)
     Identifier t_00818.a