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.