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Re: Upgrading rant.

From: mlw <pgsql(at)mohawksoft(dot)com>
To: Hannu Krosing <hannu(at)tm(dot)ee>
Cc: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>, Lamar Owen <lamar(dot)owen(at)wgcr(dot)org>,pgsql-hackers(at)postgresql(dot)org
Subject: Re: Upgrading rant.
Date: 2003-01-03 19:19:28
Message-ID: (view raw, whole thread or download thread mbox)
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

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.

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