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ACID correct distributed transactions are possible. Google's F1 paper shows how: https://static.googleusercontent.com/media/research.google.com/en//pubs/archive

• fweespeech 10y ago
  They are possible but they are not possible to make per formant compared to the alternative. Google falls under the "absurd amount of money" camp. > Protocol Buffers have performance implications for query processing. First, we always have to fetch entire Protocol Buffer columns from Spanner, even when we are only interested in a small subset of fields. There are a number of performance costs documented in the paper. Simply because you can solve it via money doesn't mean it works for all situations.