[GitHub] [incubator-druid] ccaominh opened a new pull request #9003: Datasketches in core

[GitBox <gi...@apache.org>]

ccaominh opened a new pull request #9003: Datasketches in core
URL: https://github.com/apache/incubator-druid/pull/9003
 
 
   ### Description
   
   Having DataSketches in core will allow:
   - Replaces usages of HyperLogLogCollector with the better DataSketches implementation
   - Range partitioning for native parallel batch indexing without having the user load extensions on the classpath
   
   Dev mailing list discussion:
   https://lists.apache.org/thread.html/301410d71ff799cf616bf17c4ebcf9999fc30829f5fa62909f403e6c%40%3Cdev.druid.apache.org%3E
   
   <hr>
   
   This PR has:
   - [x] been self-reviewed.
   - [x] added documentation for new or modified features or behaviors.
   - [x] added or updated version, license, or notice information in [licenses.yaml](https://github.com/apache/incubator-druid/blob/master/licenses.yaml)
   - [x] added comments explaining the "why" and the intent of the code wherever would not be obvious for an unfamiliar reader.
   - [x] been tested in a test Druid cluster.

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