Am 10.09.2014 um 22:25 schrieb Michael Segel: > Ok, but here’s the thing… you extrapolate the design out… each column > with a subordinate record will get its own CF. I disagree. Not by the proposed design. You could do it with one CF.
> Simple examples can go > very bad when you move to real life. I agree. > Again you need to look at hierarchical databases and not think in > terms of relational. To give you a really good example… look at a > point of sale system in Pick/Revelation/U2 … > > You are great at finding a specific customer’s order and what they > ordered. You suck at telling me how many customers ordered that > widget in red. during the past month’s promotion. (You’ll need to > do a map/reduce for that. ) correct, that's the downside of the suggestion. If you want to query something like that ("give all 'toplevel columns' that that have this and that!"), you would have to make a map reduce. Or you need something like an index. But that's a question only the thread owner can answer because we don't know what he's trying to accomplish. If there is a chance that he want to query something like that, my suggestion would be a bad plan. I think the thread owner has now 3 ideas how to do what he was asking for, with up and downsides. Now he has to decide what's the best plan for the future. Best wishes, Wilm