Re: Core team statement on replication in PostgreSQL

> 
> Hmm, WAL version compatibility is an interesting question. Most minor 
> releases hasn't changed the WAL format, and it would be nice to allow 
As I remember, high minor version should read all WALs from lowers, but it isn't 
true for opposite case and between different major versions.

> running different minor versions in the master and slave in those cases. 
> But it's certainly not unheard of to change the WAL format. Perhaps we 
> should introduce a WAL version number, similar to catalog version?

Agree. Right now it only touches warm-stand-by servers, but introducing simple 
log-shipping and based on it replication will cause a lot of unobvious 
errors/bugs. Is it possible to use catalog version number as WAL version?

-- 
Teodor Sigaev                                   E-mail: teodor@sigaev.ru
  WWW: http://www.sigaev.ru/