KEY `wb_ips_site_page` (`ips_site_page`),
This is useful for queries where we want to find a given linked page by title (like "Berlin"), but don't know the site id (like "enwiki"). We don't do these kinds of queries within the software and I can barely imagine a purpose for this.
The only way to use this via Wikibase is SiteLinkLookup::getLinks which allows for such queries to be crafted (but no one does this currently). The method states:
Note: if the conditions are not very selective the result set can be very big. * Thus the caller is responsible for not executing too expensive queries in its context.
If we want, we could make the implementations of getLinks throw if $siteIds is not set, but I'm not sure that's even needed here (as per the above comment).
- labsdb1001.eqiad.wmnet (read only host: T179464)