Technically, cross-wiki joins aren't completely disallowed, you just have to make sure each of the db names are on the same slice/section, right?
~ MA On Wed, Nov 11, 2020 at 4:11 PM Maarten Dammers <maar...@mdammers.nl> wrote: > Hi Joaquin, > On 10-11-2020 21:26, Joaquin Oltra Hernandez wrote: > > TLDR: Wiki Replicas' architecture is being redesigned for stability and > performance. Cross database JOINs will not be available and a host > connection will only allow querying its associated DB. See [1] > <https://wikitech.wikimedia.org/wiki/News/Wiki_Replicas_2020_Redesign> > for more details. > > If you only think of Wikipedia, not a lot will break probably, but if you > take into account Commons and Wikidata a lot will break. A quick grep in my > folder with Commons queries returns 123 lines with cross database joins. So > yes, stuff will break and tools will be abandoned. This follows the > practice that seems to have become standard for the WMF these days: > Decisions are made with a small group within the WMF without any community > involved. Only after the decision has been made, it's announced. > > Unhappy and disappointed, > > Maarten > _______________________________________________ > Wikimedia Cloud Services mailing list > Cloud@lists.wikimedia.org (formerly lab...@lists.wikimedia.org) > https://lists.wikimedia.org/mailman/listinfo/cloud >
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