Re: uninterruptable regexp_replace in 9.2 and 9.3
От
Sandro Santilli
Тема
Re: uninterruptable regexp_replace in 9.2 and 9.3
Дата
Msg-id
20140303083109.GA6588@localhost
Ответ на
Re: uninterruptable regexp_replace in 9.2 and 9.3 (Pedro Gimeno)
Список
Дерево обсуждения
uninterruptable regexp_replace in 9.2 and 9.3 Sandro Santilli <strk@keybit.net>
Re: uninterruptable regexp_replace in 9.2 and 9.3 Pedro Gimeno <pgsql-004@personal.formauri.es>
Re: uninterruptable regexp_replace in 9.2 and 9.3 Tom Lane <tgl@sss.pgh.pa.us>
Re: uninterruptable regexp_replace in 9.2 and 9.3 Pedro Gimeno <pgsql-004@personal.formauri.es>
Re: uninterruptable regexp_replace in 9.2 and 9.3 Sandro Santilli <strk@keybit.net>
On Sun, Mar 02, 2014 at 02:07:29PM +0100, Pedro Gimeno wrote: > Tom Lane wrote, On 2014-03-02 05:38: > > > The performance problem we're looking at comes directly from the > > backtracking that's done to ensure that we detect a match in case the > > pattern has this sort of pathological behavior. > > It is my understanding that the bug reported by the OP is not a > performance problem, but PostgreSQL's failure to interrupt the > processing if it takes too long, when statement_timeout is set. Yes, this is my main concern. Of course it'd be nice to get a faster response, even if ill, but as long as statement_timeout is effective I'm happy. --strk; () ASCII ribbon campaign -- Keep it simple ! /\ http://strk.keybit.net/rants/ascii_mails.txt
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