SelectWithUnionQuery (children 1)
 ExpressionList (children 1)
  SelectQuery (children 2)
   ExpressionList (children 1)
    Asterisk
   TablesInSelectQuery (children 2)
    TablesInSelectQueryElement (children 1)
     TableExpression (children 1)
      Subquery (alias js1) (children 1)
       SelectWithUnionQuery (children 1)
        ExpressionList (children 1)
         SelectQuery (children 2)
          ExpressionList (children 2)
           Identifier dummy (alias a)
           Function tuple (alias tup) (children 1)
            ExpressionList (children 2)
             Function toUInt8 (children 1)
              ExpressionList (children 1)
               Literal UInt64_0
             Function toUInt8 (children 1)
              ExpressionList (children 1)
               Literal UInt64_0
          TablesInSelectQuery (children 1)
           TablesInSelectQueryElement (children 1)
            TableExpression (children 1)
             TableIdentifier system.one
    TablesInSelectQueryElement (children 2)
     TableExpression (children 1)
      Subquery (alias js2) (children 1)
       SelectWithUnionQuery (children 1)
        ExpressionList (children 1)
         SelectQuery (children 2)
          ExpressionList (children 2)
           Identifier dummy (alias a)
           Function tuple (alias tup) (children 1)
            ExpressionList (children 2)
             Function toUInt8 (children 1)
              ExpressionList (children 1)
               Literal UInt64_0
             Function toUInt8 (children 1)
              ExpressionList (children 1)
               Literal UInt64_0
          TablesInSelectQuery (children 1)
           TablesInSelectQueryElement (children 1)
            TableExpression (children 1)
             TableIdentifier system.one
     TableJoin (children 1)
      ExpressionList (children 2)
       Identifier a
       Identifier tup
