Re: Upgrading rant.

pgsql@mohawksoft.com

From: mlw <pgsql@mohawksoft.com>
To: Hannu Krosing <hannu@tm.ee>
Cc: Tom Lane <tgl@sss.pgh.pa.us>, Lamar Owen <lamar.owen@wgcr.org>, pgsql-hackers@postgresql.org
Date: 2003-01-03T19:19:28Z
Lists: pgsql-hackers

Hannu Krosing wrote:

>I don't think the main issues are with file _formats_ but rather with
>system file structures - AFAIK it is a fundamental design decision
>(arguably a design flaw ;( ) that we use system tables straight from
>page cache via C structure pointers, even though there seems to be a
>layer called "storage Manager" which should hide the on-disk format
>completely.
>

I don't think that is a big issue, no one is saying the file format 
should "change" or be used any differently, just that the structures be 
more rigid, and anyone wishing to make a change, had better also have an 
upgrade strategy.

Perhaps there could be a review/document phase for 7.4 where the 
structures are cleaned up, checked, and perhaps have a couple "reserved" 
entries added. (As governed by efficiecy) and have one last "speak now, 
or forever hold your peace" and cast them in stone.

I think, as professional standards go, this is probably LONG over due.