I was reading about Facebook Beringei when I spotted this:
   - Extremely efficient streaming compression algorithm. Our streaming
   compression algorithm is able to compress real world time series data by
   over 90%. The delta of delta compression algorithm used by Beringei is also
   fast - we see that a single machine is able to compress more than 1.5
   million datapoints/second.
That "*delta of delta*" caught my attention.... This delta of delta
encoding is one of the Facebook Gorilla tricks that allows it to compress
16 bytes into 1.37 bytes on average -- see section 4.1 that describes it --

This seems to be aimed at both time fields and numerical values.

Would Lucene benefit from this?

https://github.com/burmanm/gorilla-tsc seems to be a fresh Java

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