It looks like the MediaWiki page ID is not used in the new tables in SMW 1.2 - instead, each page has an internal "SMW ID"; and even in the "smw_ids" table, which is used to connect properties to the actual wiki pages, only the title and namespace of the page show up, not the page ID. Is that true? And if so, is there a reason for it? For certain usages (at least, for my Semantic Drilldown extension) it seems like it would be more efficient to have that page ID there somewhere; though I could be wrong.