Re: autocommit vs TRUNCATE et al
От | Bruce Momjian |
---|---|
Тема | Re: autocommit vs TRUNCATE et al |
Дата | |
Msg-id | 200210200251.g9K2pCO22653@candle.pha.pa.us обсуждение исходный текст |
Ответ на | Re: autocommit vs TRUNCATE et al (Lamar Owen <lamar.owen@wgcr.org>) |
Список | pgsql-hackers |
Added to TODO: * Make a transaction-safe TRUNCATE --------------------------------------------------------------------------- Lamar Owen wrote: > On Friday 18 October 2002 11:25 pm, Tom Lane wrote: > > Gavin Sherry <swm@linuxworld.com.au> writes: > > > On Fri, 18 Oct 2002, Tom Lane wrote: > > >> Anyone see a way out of this catch-22? If not, which is the least > > >> bad alternative? > > > > Ultimately, fix TRUNCATE to be transaction safe. This is non-trivial, > > > I know :-). > > > I was about to say that the entire *point* of TRUNCATE is to be > > transaction-unsafe ;-) > > I actually was considering using a transaction-safe TRUNCATE in an application > involving daily imports of 170MB of data into a set of linked tables. Since > the import takes a finite amount of time, it would be nice to have the > previous data available while the new is being imported. And TRUNCATE is > significantly faster than DELETE over 170MB of data. > -- > Lamar Owen > WGCR Internet Radio > 1 Peter 4:11 > > ---------------------------(end of broadcast)--------------------------- > TIP 3: if posting/reading through Usenet, please send an appropriate > subscribe-nomail command to majordomo@postgresql.org so that your > message can get through to the mailing list cleanly > -- Bruce Momjian | http://candle.pha.pa.us pgman@candle.pha.pa.us | (610) 359-1001+ If your life is a hard drive, | 13 Roberts Road + Christ can be your backup. | Newtown Square, Pennsylvania19073
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