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Posted to issues@spark.apache.org by "Herman van Hövell (Jira)" <ji...@apache.org> on 2019/10/03 11:00:00 UTC

[jira] [Created] (SPARK-29346) Create Aggregating Accumulator

Herman van Hövell created SPARK-29346:
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             Summary: Create Aggregating Accumulator
                 Key: SPARK-29346
                 URL: https://issues.apache.org/jira/browse/SPARK-29346
             Project: Spark
          Issue Type: New Feature
          Components: SQL
    Affects Versions: 3.0.0
            Reporter: Herman van Hövell
            Assignee: Herman van Hövell


Create an accumulator that can compute a global aggregate over an arbitrary number of expressions. We will use this to implement observable metrics.



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