On Fri, Mar 20, 2009 at 1:26 PM, O. O. <olson...@yahoo.com> wrote:
> I think this might mean that there are entries in the Redirect Table
> where the rd_from does not correspond to a valid page_id in the Page
> Table? I don’t know what these would be used for though.

They're probably just wrong.  The page may have been deleted and the
redirect entry not, for some reason.  This sort of thing happens with
denormalized data.  *In theory* everything is in transactions, so it
shouldn't happen, except when they aren't and so it does, or they are
and it still does somehow.

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