[Koha-bugs] [Bug 27584] Improve OAI-PMH provider performance

[bugzilla-daemon at bugs.koha-community.org]

https://bugs.koha-community.org/bugzilla3/show_bug.cgi?id=27584

--- Comment #16 from David Cook <dcook at prosentient.com.au> ---
At a glance, I think that your code is probably an improvement.

However, looking at Koha::OAI::Server::ListBase makes me wonder if we shouldn't
denormalize a bit though. If we had a timestamp in a biblio table that included
a timestamp for the last item activity, that would remove the need for a lot of
these complex SQL queries. 

If we fetched all the biblio metadata in our first query, we'd also save
overhead. 

But... both of those would involve more work.

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