| From: | Bruce Momjian <pgman(at)candle(dot)pha(dot)pa(dot)us> |
|---|---|
| To: | Martijn van Oosterhout <kleptog(at)svana(dot)org> |
| Cc: | Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>, josh(at)agliodbs(dot)com, pgsql-hackers(at)postgresql(dot)org, Andrew Dunstan <andrew(at)dunslane(dot)net> |
| Subject: | Re: Re-thing PG_MODULE_MAGIC |
| Date: | 2006-06-16 12:48:00 |
| Message-ID: | 200606161248.k5GCm0604648@candle.pha.pa.us |
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| Lists: | pgsql-hackers |
Martijn van Oosterhout wrote:
-- Start of PGP signed section.
> On Fri, Jun 16, 2006 at 12:01:53AM -0400, Bruce Momjian wrote:
> > OK, new text:
> >
> > The <quote>magic block</> required in all PostgreSQL-supported libraries
> > is checked to guarantee compatibility. For this reason, non-PostgreSQL
> > libraries cannot be loaded in this way.
>
> Heh. "guarantee"? We only check four things and it's possible to change
> the system in all sorts of subtle ways (--integer-datetimes) that won't
> be picked up. Ofcourse, for 99% of modules this is not a problem but
> I'm not sure if the word "guarantee" is appropriate.
>
> Maybe just "checked for compatibility", or "determine" or "ascertain".
OK, new text in new paragraph:
Every PostgreSQL-supported library has a <quote>magic
block</> that is checked to guarantee compatibility.
For this reason, non-PostgreSQL libraries cannot be
loaded in this way.
--
Bruce Momjian http://candle.pha.pa.us
EnterpriseDB http://www.enterprisedb.com
+ If your life is a hard drive, Christ can be your backup. +
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