Sorry,I can't get this sentence's exact meaning. 'External storage stores
page text on a separate DB server to the main wiki database.'
What 's separate DB server ?
Or I just want to know where can I get the page content?
From: Petr Kadlec <petr.kadlec(a)gmail.com>
To: Wikimedia developers <wikitech-l(a)lists.wikimedia.org>
Date: Fri, 25 Sep 2009 16:29:58 +0200
Subject: Re: [Wikitech-l] Data Processing
2009/9/25 李琴 <qli(a)ica.stc.sh.cn>cn>:
The entire page text has been stroed in text table.
But the recent change
page just shows the edited text.
Then,how do these text stroed?
It is not stored. It is evaluated during every diff view by comparing
(diffing) the two revisions (see phase3/includes/diff/*.php). Note you
can view differences between two non-consecutive versions (indeed, you
can compare two revisions not even belonging to the same page, e.g.
I want to see the content(BLOB) of old_text fiels in
What should I do?
It depends on the configuration of your wiki. The “text” table might
contain the wikitext directly in the “old_text” column (in the source
text form, or as a serialized PHP object, see
phase3/includes/HistoryBlob.php), or the “old_text” column is only a
pointer to where/how the text is really stored, see e.g.
-- [[cs:User:Mormegil | Petr Kadlec]]
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