SelectWithUnionQuery (children 1)
 ExpressionList (children 1)
  SelectQuery (children 3)
   ExpressionList (children 1)
    Asterisk
   TablesInSelectQuery (children 1)
    TablesInSelectQueryElement (children 1)
     TableExpression (children 1)
      Subquery (alias outer_table_alias) (children 1)
       SelectWithUnionQuery (children 1)
        ExpressionList (children 1)
         SelectQuery (children 2)
          ExpressionList (children 2)
           Function toUInt64 (alias a) (children 1)
            ExpressionList (children 1)
             Identifier b
           Function sum (alias b) (children 1)
            ExpressionList (children 1)
             Identifier id
          TablesInSelectQuery (children 1)
           TablesInSelectQueryElement (children 1)
            TableExpression (children 1)
             TableIdentifier test_00597 (alias table_alias)
   Function equals (children 1)
    ExpressionList (children 2)
     Identifier outer_table_alias.b
     Literal UInt64_3
