Dear Rosers, I have never fully understood the implications of this message:
WARNING: Fetching sub-objects via more than one "one to many" relationship in a single query may produce many redundant rows, and the query may be slow I have avoided doing such queries until now but now I have reached that point. I'm not fussed about the "slow" part of this - it's the redundant rows I want to avoid - doesn't this amount to an "incorrect result"? I've looked through the documentation and the discussions but cannot find anything comprehensively explaining the implications. I'm sure I won't be the only person who would appreciate a short piece with: The theory A tiny example showing what can happen. An explanation of when redundant rows do happen and conversely when it's OK to not worry (and use the multi_ok switch) A way to use multiple one-to-many relationships without getting the redundant rows. I don't want to waste anyone's time and possibly a piece outside Rose documentation exists. Is there anything out there that will assist? thanks, James. ------------------------------------------------------------------------- This SF.net email is sponsored by: Microsoft Defy all challenges. Microsoft(R) Visual Studio 2008. http://clk.atdmt.com/MRT/go/vse0120000070mrt/direct/01/ _______________________________________________ Rose-db-object mailing list Rose-db-object@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/rose-db-object
