[ZODB-Dev] Fwd: Packing and GC versus packtime

[Christian Theune]

Posted to the wrong list initially. Sorry.

-------- Original Message --------
Subject: Packing and GC versus packtime
Date: Mon, 09 Nov 2009 13:22:04 +0100
From: Christian Theune <ct at gocept.com>
To: zope-dev at zope.org
Newsgroups: gmane.comp.web.zope.devel

Hi,

I'm wondering:

Scenario 1: I pack a storage to a time T and append X transactions after
that

Scenario 2: I append X transactions to a storage and then pack it to time T.

Will those scenarios end up with the same result? I can imagine GC to
get in the way, but I'm not sure about how it does its thing exactly.

The question can also be phrased as: Are the operations "pack" and
"append transaction" for storages commutative?

Christian

-- 
Christian Theune · ct at gocept.com
gocept gmbh & co. kg · forsterstraße 29 · 06112 halle (saale) · germany
http://gocept.com · tel +49 345 1229889 0 · fax +49 345 1229889 1
Zope and Plone consulting and development

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