Github user zentol commented on the pull request:
https://github.com/apache/incubator-flink/pull/4#issuecomment-46653245
i may have misunderstood your question. if you want to compare the data byte-wise, without having to modify it (like padding with zeroes) or analyze it (like reading them as chars), then the encoding has to be changed, my idea would be using the first 2 bits of every byte to encode the index of that particular byte.
This will reduce the effectiveness of the variable-length encoding (all letters are encoded with 2 bytes), but you could use the very loop you described.
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