Implement hashcode/equals for exponential histograms #133648
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…quals # Conflicts: # libs/exponential-histogram/src/main/java/org/elasticsearch/exponentialhistogram/ExponentialHistogram.java # libs/exponential-histogram/src/main/java/org/elasticsearch/exponentialhistogram/ExponentialHistogramUtils.java # x-pack/plugin/mapper-exponential-histogram/src/main/java/org/elasticsearch/xpack/exponentialhistogram/CompressedExponentialHistogram.java
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This PR implements a value-based hashcode and equals method to be used by all subclasses of
ExponentialHistogram.This will be required a lot for ES|QL tests, as those rely on hashcode/equals on column values in assertions.
We might also need this for block equality, though I'd hope that we can get aways with byte-wise equality on the underlying sub-blocks, as we plan on making the
ExponentialHistogramBlocka composite block.