- From: Ray Denenberg <rden@loc.gov>
- Date: Fri, 22 Feb 2002 12:10:09 -0500
Ashley Sanders wrote: > Does not real Explain already have a F&N feature -- Surrogate > Explain Databases as described by Denis Lynch ... Good point. The explain definition was developed with the intention of explaining a single server (the one where the Explain database resides). The idea of a surrogate explain server was sort of a last minute add-on, an afterthought. Nevertheless it's a reasonably sound approach, it seems to me. It works roughly like this: there is a well-known database that explains the local server, but other databases (that is, with names different from the well-known database explain-1) can reside at that server too. The way to discover them is to search the well-known database, explain-1, for database info records, and the ones that correspond to surrogate databases have a flag. See 3.2.10.3.2, second bullet. Or look at the ASN.1 for Explain, DatabaseInfo, 'explainDatabase'. You'll note that if we want to exploit this feature to do what we're talking about, it would require a bit more specificity, but the hook is there. --Ray
Received on Friday, 22 February 2002 12:09:03 UTC