On Mon, 2012-05-28 at 19:24 +0100, Alejandro Carrillo wrote: > Hi, > > > ¿How I can recover a row delete of a table that wasn't vacuummed? > I have PostgreSQL 9.1 in Windows XP/7. The first thing to do is shut down postgresql and take a full backup of the data directory, including any archived WAL you might have (files in pg_xlog). Make sure this is done first. Next, do you have any backups? If you have a base backup from before the delete, and all the WAL files from the time of the base backup until now, then you can try point-in-time recovery to the point right before the data loss: http://www.postgresql.org/docs/9.1/static/continuous-archiving.html If not, are we talking about a single row, or many rows? If it's a single row you might be able to do some manual steps, like examining the pages to recover the data. Another option is to try pg_resetxlog (make sure you have a safe backup first!): http://www.postgresql.org/docs/9.1/static/app-pgresetxlog.html And try setting the current transaction ID to just before the delete ran. Then you may be able to use pg_dump or otherwise export the deleted rows. Regards, Jeff Davis -- Sent via pgsql-performance mailing list (pgsql-performance@xxxxxxxxxxxxxx) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-performance
