Re: JDBC and positioned updates
От | Hédi HACHENI |
---|---|
Тема | Re: JDBC and positioned updates |
Дата | |
Msg-id | 567E556F.4020103@kopileft.com обсуждение исходный текст |
Ответ на | Re: JDBC and positioned updates (Vladimir Sitnikov <sitnikov.vladimir@gmail.com>) |
Ответы |
Re: JDBC and positioned updates
|
Список | pgsql-jdbc |
Basically we will not perform positioned updates on the hole table data but for a data portion that it would not exceed 30 rows. That's why I said it depends on what table we're going through. But we take care about queries performances. On 12/26/2015 09:21 AM, Vladimir Sitnikov wrote: >> we cannot achieve positioned updates using the JDBC implementation > This is "functional requirement" > >> All of these parameters depends on what table we're going through > Those a "non-functional requirements" (see [1]). > You'd better collect NFRs *before* you finalize design and write the code. > >> Our main problem is > Suppose you somehow achieved "positional updates". What if it turns > out to be super-slow? Believe me, there are good reasons for > "positional updates" to be super slow. > You would have to rewrite the whole thing from scratch to make it fast. > > This is why I do not want to help you to shoot into your own foot. > > Anyway, pull requests are welcome. > > [1]: https://en.wikipedia.org/wiki/Non-functional_requirement > > Vladimir
В списке pgsql-jdbc по дате отправления: