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https://issues.apache.org/jira/browse/SPARK-22251?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Apache Spark reassigned SPARK-22251:
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Assignee: Apache Spark
> Metric "aggregate time" is incorrect when codegen is off
> --------------------------------------------------------
>
> Key: SPARK-22251
> URL: https://issues.apache.org/jira/browse/SPARK-22251
> Project: Spark
> Issue Type: Bug
> Components: SQL
> Affects Versions: 2.2.0
> Reporter: Ala Luszczak
> Assignee: Apache Spark
> Priority: Minor
>
> When whole-stage codegen is off, metric "aggregate time" is not set correctly.
> Repro:
> # spark.conf.set("spark.sql.codegen.wholeStage", false)
> #
> spark.range(5).crossJoin(spark.range(5)).toDF("a","b").groupBy("a").agg(sum("b")).show
> # In Spark UI > SQL you can see that "aggregate time total" is 0 in
> "HashAggregate" boxes
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