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How to design a SQL db with undo-redo?...

Python: Substracting between list of dictionaries...

Stream rdiff - delta differencing?...

Python Difflib Deltas and Compare Ndiff...

need a solution to process SVN deltas...

Delta indexes not working on servers when using Thinking Sphinx...

Thinking Sphinx with Rails - Delta indexing seems to work fine for one model but not for the other...