[jira] [Created] (FLINK-13562) throws exception when FlinkRelMdColumnInterval meets two stage stream group aggregate

["godfrey he (JIRA)" <ji...@apache.org>]

godfrey he created FLINK-13562:
----------------------------------

             Summary: throws exception when FlinkRelMdColumnInterval meets two stage stream group aggregate
                 Key: FLINK-13562
                 URL: https://issues.apache.org/jira/browse/FLINK-13562
             Project: Flink
          Issue Type: Bug
          Components: Table SQL / Planner
            Reporter: godfrey he
             Fix For: 1.9.0, 1.10.0


test case:

{code:scala}
  @Test
  def testTwoDistinctAggregateWithNonDistinctAgg(): Unit = {
    util.addTableSource[(Int, Long, String)]("MyTable", 'a, 'b, 'c)
    util.verifyPlan("SELECT c, SUM(DISTINCT a), SUM(a), COUNT(DISTINCT b) FROM MyTable GROUP BY c")
  }
{code}



org.apache.flink.table.api.TableException: Sum aggregate function does not support type: ''VARCHAR''.
Please re-check the data type.

	at org.apache.flink.table.planner.plan.utils.AggFunctionFactory.createSumAggFunction(AggFunctionFactory.scala:191)
	at org.apache.flink.table.planner.plan.utils.AggFunctionFactory.createAggFunction(AggFunctionFactory.scala:74)
	at org.apache.flink.table.planner.plan.utils.AggregateUtil$$anonfun$9.apply(AggregateUtil.scala:285)
	at org.apache.flink.table.planner.plan.utils.AggregateUtil$$anonfun$9.apply(AggregateUtil.scala:279)
	at scala.collection.TraversableLike$$anonfun$map$1.apply(TraversableLike.scala:234)
	at scala.collection.TraversableLike$$anonfun$map$1.apply(TraversableLike.scala:234)
	at scala.collection.mutable.ResizableArray$class.foreach(ResizableArray.scala:59)
	at scala.collection.mutable.ArrayBuffer.foreach(ArrayBuffer.scala:48)
	at scala.collection.TraversableLike$class.map(TraversableLike.scala:234)
	at scala.collection.AbstractTraversable.map(Traversable.scala:104)
	at org.apache.flink.table.planner.plan.utils.AggregateUtil$.transformToAggregateInfoList(AggregateUtil.scala:279)
	at org.apache.flink.table.planner.plan.utils.AggregateUtil$.getOutputIndexToAggCallIndexMap(AggregateUtil.scala:154)
	at org.apache.flink.table.planner.plan.metadata.FlinkRelMdColumnInterval.getAggCallIndexInLocalAgg$1(FlinkRelMdColumnInterval.scala:504)
	at org.apache.flink.table.planner.plan.metadata.FlinkRelMdColumnInterval.estimateColumnIntervalOfAggregate(FlinkRelMdColumnInterval.scala:526)
	at org.apache.flink.table.planner.plan.metadata.FlinkRelMdColumnInterval.getColumnInterval(FlinkRelMdColumnInterval.scala:417)
	at GeneratedMetadataHandler_ColumnInterval.getColumnInterval_$(Unknown Source)
	at GeneratedMetadataHandler_ColumnInterval.getColumnInterval(Unknown Source)
	at org.apache.flink.table.planner.plan.metadata.FlinkRelMetadataQuery.getColumnInterval(FlinkRelMetadataQuery.java:122)



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