Re: PITR Phase 2 - Design Planning

Mike Mascari <mascarm@mascari.com>

From: Mike Mascari <mascarm@mascari.com>
To: Simon Riggs <simon@2ndquadrant.com>
Cc: Peter Eisentraut <peter_e@gmx.net>, Richard Huxton <dev@archonet.com>, Bruce Momjian <pgman@candle.pha.pa.us>, Alvaro Herrera <alvherre@dcc.uchile.cl>, pgsql-hackers@postgresql.org
Date: 2004-04-29T19:14:38Z
Lists: pgsql-hackers
Simon Riggs wrote:

> On Thu, 2004-04-29 at 16:09, Peter Eisentraut wrote:
> 
> Perhaps that was the inspiration, but no, I definitely meant a 
> CHECKPOINT.
> 
> But now you come to mention it, it would be better just to have a
>  command that simply wrote a named record to the xlog, so it can
> be searched for later...
> 
> COMMENT [IN TRANSACTION LOG] 'starting payroll Feb04'

FWFW,

Oracle's COMMIT syntax has an optional COMMENT specifier which is 
used for documenting a distributed transaction. In-doubt 
transactions can then be manually committed or aborted by 
referencing the transaction associated with the comment. Example:

COMMIT WORK COMMENT 'A complex distributed Tx';

Perhaps there is some common ground between the 2PC implementation 
and PITR?

Mike Mascari