Re: SIREAD lock versus ACCESS EXCLUSIVE lock

Поиск
Список
Период
Сортировка
От Tom Lane
Тема Re: SIREAD lock versus ACCESS EXCLUSIVE lock
Дата
Msg-id 26005.1307204344@sss.pgh.pa.us
обсуждение исходный текст
Ответ на Re: SIREAD lock versus ACCESS EXCLUSIVE lock  (Heikki Linnakangas <heikki.linnakangas@enterprisedb.com>)
Ответы Re: SIREAD lock versus ACCESS EXCLUSIVE lock  (Heikki Linnakangas <heikki.linnakangas@enterprisedb.com>)
Список pgsql-hackers
Heikki Linnakangas <heikki.linnakangas@enterprisedb.com> writes:
> On 03.06.2011 21:04, Kevin Grittner wrote:
>> Also, if anyone has comments or hints about the placement of those
>> calls, I'd be happy to receive them.

> heap_drop_with_catalog() schedules the relation for deletion at the end 
> of transaction, but it's still possible that the transaction aborts and 
> the heap doesn't get dropped after all. If you put the 
> DropAllPredicateLocksFromTable() call there, and the transaction later 
> aborts, you've lost all the locks already.

But on the third thought: is that wrong?  Surely locks taken by an
aborted transaction can be discarded.
        regards, tom lane


В списке pgsql-hackers по дате отправления:

Предыдущее
От: Simon Riggs
Дата:
Сообщение: Re: creating CHECK constraints as NOT VALID
Следующее
От: Heikki Linnakangas
Дата:
Сообщение: Re: SIREAD lock versus ACCESS EXCLUSIVE lock