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https://issues.apache.org/jira/browse/SPARK-18663?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Reynold Xin resolved SPARK-18663.
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Resolution: Fixed
Fix Version/s: 2.2.0
> Simplify CountMinSketch aggregate implementation
> ------------------------------------------------
>
> Key: SPARK-18663
> URL: https://issues.apache.org/jira/browse/SPARK-18663
> Project: Spark
> Issue Type: Sub-task
> Components: SQL
> Reporter: Reynold Xin
> Assignee: Reynold Xin
> Fix For: 2.2.0
>
>
> SPARK-18429 introduced count-min sketch aggregate function for SQL, but the
> implementation and testing is more complicated than needed. This simplifies
> the test cases and removes support for data types that don't have clear
> equality semantics.
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