[GitHub] [incubator-druid] samarthjain opened a new issue #9069: Fix tdigest aggregators to handle null values and enable them to be used for rollup during ingestion

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

samarthjain opened a new issue #9069: Fix tdigest aggregators to handle null values and enable them to be used for rollup during ingestion
URL: https://github.com/apache/incubator-druid/issues/9069
 
 
   Please provide a detailed title (e.g. "Broker crashes when using TopN query with Bound filter" instead of just "Broker crashes").
   
   ### Affected Version
   0.16.0
   The Druid version where the problem was encountered.
   0.16.0
   ### Description
   During our local testing I ran into an issue where the t-digest aggregators throw an NPE when a null value is encountered. Additionally, while doing the ingestion, it turned out that the aggregators need to implement the `makeAggregateCombiner` interface. While this worked fine in 0.12.0, something has changed from then which makes this an explicit requirement. 
   
   

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