Re: money type overflow checks

Поиск
Список
Период
Сортировка
От Peter Eisentraut
Тема Re: money type overflow checks
Дата
Msg-id 1a499c6f-9a35-9eca-9857-0acbe371e74a@2ndquadrant.com
обсуждение исходный текст
Ответ на Re: money type overflow checks  (Tom Lane <tgl@sss.pgh.pa.us>)
Список pgsql-hackers
On 8/5/16 1:14 PM, Tom Lane wrote:
> No, I don't think it's sufficient after a multiplication by 10.  That
> would be enough to shift some bits clear out of the word, but there's
> no certainty that the new sign bit would be 1.
>
> The scheme used in scanint8 is safe.  But I think it was written that way
> mainly to avoid hard-wired assumptions about how wide int64 is, a
> consideration that's a mite obsolete now.

OK, I did it like int8, and added more tests.  My original patch didn't
get the most negative integer right.

--
Peter Eisentraut              http://www.2ndQuadrant.com/
PostgreSQL Development, 24x7 Support, Remote DBA, Training & Services

Вложения

В списке pgsql-hackers по дате отправления:

Предыдущее
От: Tom Lane
Дата:
Сообщение: Re: No longer possible to query catalogs for index capabilities?
Следующее
От: Jim Nasby
Дата:
Сообщение: Add hint for function named "is"