| From: | Gregory Stark <stark(at)enterprisedb(dot)com> |
|---|---|
| To: | "Zdenek Kotala" <Zdenek(dot)Kotala(at)Sun(dot)COM> |
| Cc: | "Heikki Linnakangas" <heikki(at)enterprisedb(dot)com>, "PostgreSQL-development" <pgsql-hackers(at)postgresql(dot)org> |
| Subject: | Re: Proposal: PageLayout footprint |
| Date: | 2008-08-11 11:50:49 |
| Message-ID: | 87vdy7src6.fsf@oxford.xeocode.com |
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| Lists: | pgsql-hackers |
"Zdenek Kotala" <Zdenek(dot)Kotala(at)Sun(dot)COM> writes:
> By my opinion -fipa-struct-reorg GCC option could break structure. And maybe
> there are more compiler magic switches and optimization on different platforms
> which can modify structure alignment or member order. It probably does not
> happen often but footprint should protect people to shot himself.
My version of GCC doesn't have that option, what does it do?
If structure members aren't in the order they're defined and padded to the
alignment they're declared to have in pg_type then Postgres catalogs won't
work anyways.
--
Gregory Stark
EnterpriseDB http://www.enterprisedb.com
Ask me about EnterpriseDB's RemoteDBA services!
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