| 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: | 3E15E240.90702@mohawksoft.com |
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| 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.
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