[ADMIN] UNDO

2004-06-21 Thread Carlos Benkendorf
Hi, In 7.4 manual is written than UNDO is not implemented. What it really means? When should PostgreSQL do an UNDO? Are not all data only written to disk when it is committed? Why should Postgresql do an undo? Thanks in advance!

Re: [ADMIN] UNDO

2004-06-21 Thread Tom Lane
=?iso-8859-1?q?Carlos=20Benkendorf?= [EMAIL PROTECTED] writes: In 7.4 manual is written than UNDO is not implemented. What it really means? Not much. It's unlikely that we ever will implement UNDO in the sense that passage is talking about --- which is to say, reversing out the effects of a