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https://issues.apache.org/jira/browse/SPARK-20567?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Herman van Hovell resolved SPARK-20567.
---------------------------------------
Resolution: Fixed
Fix Version/s: 2.2.0
> Failure to bind when using explode and collect_set in streaming
> ---------------------------------------------------------------
>
> Key: SPARK-20567
> URL: https://issues.apache.org/jira/browse/SPARK-20567
> Project: Spark
> Issue Type: Bug
> Components: SQL
> Affects Versions: 2.2.0
> Reporter: Michael Armbrust
> Assignee: Michael Armbrust
> Priority: Critical
> Fix For: 2.2.0
>
>
> Here is a small test case:
> {code}
> test("count distinct") {
> val inputData = MemoryStream[(Int, Seq[Int])]
> val aggregated =
> inputData.toDF()
> .select($"*", explode($"_2") as 'value)
> .groupBy($"_1")
> .agg(size(collect_set($"value")))
> .as[(Int, Int)]
> testStream(aggregated, Update)(
> AddData(inputData, (1, Seq(1, 2))),
> CheckLastBatch((1, 2))
> )
> }
> {code}
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