I'm using SPSiteDataQuery to query several lists in different sites. Unfortunately, I don't want the data from all of these sites; I have a list of ones to include and exclude.
So far I've seen SPSiteDataQuery.Webs which seems to only allow the scope to be changed (entire collection, just subsites, just this site), and SPSiteDataQuery. Lists which would require the List IDs (that I don't have) or the lists' template IDs (not specific enough).
How do I persuade SPSiteDataQuery to only return results for the sites on my include list? FYI: I have the IDs and URLs of the sites to include, and filtering post-fetch is not an option.