Hellooo Monks, I have a question regarding maintaining a delta log of a large unordered list. I'm going to be storing a list of 50-100,000 items in a database and would like to keep track of all changes (additions/deletions) of said list, kinda like a revision log.

Can anyone suggest a good data structure to use for this? I've considered the both "brute" force methods, either just keeping (n) copies of the list or keeping one list and a list of changes but there seems like there should be a better way. Thanks!

In reply to Maintaining deltas of a long list by slagel

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