Re: Transaction-controlled robustness for replication

Hi,

Alvaro Herrera wrote:
> Actually I think the idea here is to take certain WAL records, translate
> them into "portable" constructs, ship them, 

At which point it clearly shouldn't be called a WAL shipping method. 
What would it have to do with the WAL at all, then? Why translate from 
WAL records at all, better use the real tuples right away. (Almost 
needless to say that here, but obviously Postgres-R does it that way).

So far, Simon really seems to mean WAL shipping: "it allows WAL to be 
used as the replication transport", see [1].

Regards

Markus Wanner

[1]: mail to -hackers from Simon, Subject: "Plans for 8.4":
http://archives.postgresql.org/pgsql-hackers/2008-07/msg01010.php