[Kernel]Basic implementation for utils class to collect file size histogram #4217
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Which Delta project/connector is this regarding?
Description
Initial implementation for adding utils for FileSizeHistogram.
Key notes:
initial histogram follows Delta spark's WIP PR https://github.com/delta-io/delta/pull/3907/files#diff-0a838b9414ebf989d6b4cde487b5744ec233bd21070ba0d1c4d1a110fd24fc5f
ToRow() and fromRow() is blocked by #4161, which will provide necessary utils method
How was this patch tested?
FileSizeHistogramSuite.scala
Does this PR introduce any user-facing changes?
No