infavorites:mine was fixed for searching within a particular Stack Exchange site, but often I find myself wanting to search for a question I favorited, but not remembering which site it was on when it could conceivably have been on a number of different sites.

On the cross-site search at https://stackexchange.com/search it does not work, presumably because we have different user ids on each site. Is there a way it could be made to work?

Note that this request is for searching, not just viewing, so it's not a duplicate of View "cross-site" favorites?. Just viewing is not very helpful when you have a huge volume of favorites across Stack Exchange sites.

  • The SE somehow doesn't want to unify their databases on reasons I can't understand. They have the SO database with 10-20million questions, and they have around 350 other whose combined size is around a third of that. However, the search doesn't happen with the microsoft SQL db they are using, it happens with an elastic search engine. Probably it wouldn't be hard to fill it with all the databases they have. However, in their decisions and behavior I see a clear tendency that they want to separate their sites as it is only possible, I don't know why is it so. – peterh Sep 3 '18 at 7:06
  • In principle it could just iterate over all 350 (or the subset you have linked accounts on) and aggregate the results. – R.. Sep 3 '18 at 7:23
  • 1
    You might try the SEDE ( data.stackexchange.com ), it is not very hard to implement cross-database queries, I have a lot. The main problem that you (and me) are good linuxers and we would need to use ms sql for that, it caused serious conscience problems for me, but in the case of the SE I made an exception. – peterh Sep 3 '18 at 7:29
  • @peterh: Thanks for the tip. It's beyond what I want to do right now - I was just trying to cite one question I had favorited to reference in an answer I wanted to write and couldn't find it, but the topic wasn't really one that justifies spending a lot of my time on it. But it might be worth doing in the future when I really have a need for an elusive favorite. – R.. Sep 3 '18 at 15:31

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