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https://issues.apache.org/jira/browse/SPARK-22044?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Apache Spark reassigned SPARK-22044:
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Assignee: Apache Spark
> explain function with codegen and cost parameters
> -------------------------------------------------
>
> Key: SPARK-22044
> URL: https://issues.apache.org/jira/browse/SPARK-22044
> Project: Spark
> Issue Type: Improvement
> Components: SQL
> Affects Versions: 2.2.0
> Reporter: Jacek Laskowski
> Assignee: Apache Spark
> Priority: Minor
>
> {{explain}} operator creates {{ExplainCommand}} runnable command that accepts
> (among other things) {{codegen}} and {{cost}} arguments.
> There's no version of {{explain}} to allow for this. That's however possible
> using SQL which is kind of surprising (given how much focus is devoted to the
> Dataset API).
> This is to have another {{explain}} with {{codegen}} and {{cost}} arguments,
> i.e.
> {code}
> def explain(codegen: Boolean = false, cost: Boolean = false): Unit
> {code}
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