[SPARK-20567] Failure to bind when using explode and collect_set in streaming - ASF JIRA

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Details

Type: Bug
Status: Resolved
Priority: Critical
Resolution: Fixed
Affects Version/s: 2.2.0
Fix Version/s: 2.2.0
Component/s: SQL
Labels:
None

Target Version/s:

2.2.0

Description

Here is a small test case:

  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))
    )
  }