| From: | Alvaro Herrera <alvherre(at)commandprompt(dot)com> |
|---|---|
| To: | Gregory Stark <stark(at)enterprisedb(dot)com> |
| Cc: | "Joshua D(dot) Drake" <jd(at)commandprompt(dot)com>, "Jonah H(dot) Harris" <jonah(dot)harris(at)gmail(dot)com>, Zdenek Kotala <Zdenek(dot)Kotala(at)sun(dot)com>, Pg Hackers <pgsql-hackers(at)postgresql(dot)org> |
| Subject: | Re: Block-level CRC checks |
| Date: | 2008-10-30 16:14:30 |
| Message-ID: | 20081030161430.GG3857@alvh.no-ip.org |
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| Lists: | pgsql-hackers |
Gregory Stark escribió:
> What I'm wondering though -- are we going to make CRCs mandatory? Or set aside
> the 4 bytes even if you're not using them? Because if the size of the page
> header varies depending on whether you're using CRCs that sounds like it would
> be quite a pain.
Not mandatory, but the space needs to be set aside. (Otherwise you
couldn't turn it on after running with it turned off, which would rule
out using the database after initdb).
--
Alvaro Herrera http://www.CommandPrompt.com/
PostgreSQL Replication, Consulting, Custom Development, 24x7 support
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