[GitHub] [druid] amitme10 edited a comment on issue #3864: Ability to ingest pre-computed hyperUnique value

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

amitme10 edited a comment on issue #3864:
URL: https://github.com/apache/druid/issues/3864#issuecomment-657661447


   Is there any option to tune the cardinality estimation (accuracy) ?
   
   As I see in DataSketches HLL Sketch module
   
   `
   {
     "type" : "HLLSketchBuild",
     "name" : <output name>,
     "fieldName" : <metric name>,
     "**lgK**" : <size and accuracy parameter>,
     "tgtHllType" : <target HLL type>,
     "round": <false | true>
    }
   `
   `
   {
     "type" : "HLLSketchMerge",
     "name" : <output name>,
     "fieldName" : <metric name>,
     "**lgK**" : <size and accuracy parameter>,
     "tgtHllType" : <target HLL type>,
     "round": <false | true>
    }
   `
   
   of course I'm using this:
   `
   {
     "type" : "hyperUnique",
     "name" : <output_name>,
     "fieldName" : <metric_name>,
     "isInputHyperUnique" : false,
     "round" : false
   }
   `
   


----------------------------------------------------------------
This is an automated message from the Apache Git Service.
To respond to the message, please log on to GitHub and use the
URL above to go to the specific comment.

For queries about this service, please contact Infrastructure at:
users@infra.apache.org



---------------------------------------------------------------------
To unsubscribe, e-mail: commits-unsubscribe@druid.apache.org
For additional commands, e-mail: commits-help@druid.apache.org