Re: Search points to ancient manuals

On 11/01/2012 07:35 PM, Marti Raudsepp wrote:
> On Thu, Nov 1, 2012 at 1:13 PM, Craig Ringer <ringerc@ringerc.id.au> wrote:> I suspect most of our

> referrers link to versioned docs, which boosts their rank, and the
> search engine has no way of telling that the individual versions are
> mostly equivalent.

I'd say so, yes. That's partly because when you visit the docs site, you
have to pick a version. You have to edit the URL to get /current .

> We might detect search engines by their User-Agent header and always
> serve them redirects to /current/ (if the page exists in current) or
> the latest version. But that would have the effect of de-indexing old
> versions of pages that have been revised -- which isn't an issue most
> of the time, but is not ideal either.

Yep; in particular, that's bad when the old versions have significantly
different info, as with `custom_variable_classes`, which is gone in 9.2,
or the `shared_buffers` changes for 9.3.

Maybe if the user visits old docs there just needs to be a banner with a
prominent "This documentation is specific to version xx of PostgreSQL;
if this is not the version you are using please choose yours from the
links above."