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Fast UDAF#18

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erikerlandson wants to merge 4 commits into
isarn:developfrom
erikerlandson:fast-udaf
Closed

Fast UDAF#18
erikerlandson wants to merge 4 commits into
isarn:developfrom
erikerlandson:fast-udaf

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@erikerlandson
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@erikerlandson erikerlandson commented Mar 15, 2019

Overall goal is to migrate from original scala immutable TDigest to new faster java mutable TDigest.

  • move to java TDigest
  • get rid of TDigestSQL wrapper (maybe TDigestArraySQL wrapper if possible)
  • update pyspark bindings

@erikerlandson
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I am closing this in favor of #20

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