Re: Proposal: PageLayout footprint - Mailing list pgsql-hackers

From Gregory Stark
Subject Re: Proposal: PageLayout footprint
Date
Msg-id 87vdy7src6.fsf@oxford.xeocode.com
Whole thread Raw
In response to Re: Proposal: PageLayout footprint  (Zdenek Kotala <Zdenek.Kotala@Sun.COM>)
Responses Re: Proposal: PageLayout footprint  ("Heikki Linnakangas" <heikki@enterprisedb.com>)
List pgsql-hackers
"Zdenek Kotala" <Zdenek.Kotala@Sun.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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