Thanks for the ideas -----Original Message----- From: Kevin Grittner [mailto:[email protected]] Sent: Friday, April 09, 2010 8:03 PM To: [email protected]; Khangelani Gama Subject: RE: [ADMIN] Re: database restoration problem- data became incorrect caused by incorrect date in the server
Khangelani Gama <[email protected]> wrote: > the backups we have uses pg_dump command. The automatic > backup dumps file happen daily and gets saved in a certain > directory No off-site copies or archives to fall back on? If not, my ideas are: (1) I hope you made a file copy as soon as you found the problem. If not, stop the database and make one immediately. If the old versions of the rows haven't yet been vacuumed away, it might be possible to fish some or all of the corrupted data out of the database. This is very tricky work, though, and you might want to contract with an expert. (I don't do that anymore, but there are several good companies with people who do.) (2) Are there any source documents you can fall back on to reconstruct the data? (3) Is there any way to "reverse" the particular calculations or operations which mangled the data? Once you do get upgraded, you should look into Point In Time Recovery (PITR) backups. Had you been running this, you could have replayed the transactions right up to the moment of corruption. Well, if you kept a base backup from before the corruption and all the WAL files since that base backup. -Kevin The contents of and attachments to this e-mail are intended for the addressee only, and may contain the confidential information of UCS Group and/or its subsidiaries. Any review, use or dissemination thereof by anyone other than the intended addressee is prohibited. If you are not the intended addressee please notify the writer immediately and destroy the e-mail. UCS Group Limited and its subsidiaries distance themselves from and accept no liability for unauthorised use of their e-mail facilities or e-mails sent other than strictly for business purposes. -- Sent via pgsql-admin mailing list ([email protected]) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-admin
