SelectWithUnionQuery (children 1)
 ExpressionList (children 1)
  SelectQuery (children 2)
   ExpressionList (children 1)
    Asterisk
   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 2)
           Literal UInt64_0 (alias k)
           Function toInt128 (alias v) (children 1)
            ExpressionList (children 1)
             Literal \'18446744073709551617\'
    TablesInSelectQueryElement (children 2)
     TableExpression (children 1)
      Subquery (alias t2) (children 1)
       SelectWithUnionQuery (children 1)
        ExpressionList (children 1)
         SelectQuery (children 1)
          ExpressionList (children 2)
           Literal UInt64_0 (alias k)
           Function toInt128 (alias v) (children 1)
            ExpressionList (children 1)
             Literal \'18446744073709551616\'
     TableJoin (children 1)
      ExpressionList (children 2)
       Identifier k
       Identifier v
