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  1. Flink
  2. FLINK-34462

Session window with negative parameter throws unclear exception

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      Set invalid parameter in session window get unclear error.

      // add test in WindowAggregateITCase
      def testEventTimeSessionWindowWithInvalidName(): Unit = {
        val sql =
          """
            |SELECT
            |  window_start,
            |  window_end,
            |  COUNT(*),
            |  SUM(`bigdec`),
            |  MAX(`double`),
            |  MIN(`float`),
            |  COUNT(DISTINCT `string`),
            |  concat_distinct_agg(`string`)
            |FROM TABLE(
            |   SESSION(TABLE T1, DESCRIPTOR(rowtime), INTERVAL '-5' SECOND))
            |GROUP BY window_start, window_end
          """.stripMargin
      
        val sink = new TestingAppendSink
        tEnv.sqlQuery(sql).toDataStream.addSink(sink)
        env.execute()
      } 
      
      
      java.lang.AssertionError: Sql optimization: Assertion error: null at org.apache.flink.table.planner.plan.optimize.program.FlinkVolcanoProgram.optimize(FlinkVolcanoProgram.scala:79) at org.apache.flink.table.planner.plan.optimize.program.FlinkChainedProgram.$anonfun$optimize$1(FlinkChainedProgram.scala:59) at scala.collection.TraversableOnce.$anonfun$foldLeft$1(TraversableOnce.scala:156) at scala.collection.TraversableOnce.$anonfun$foldLeft$1$adapted(TraversableOnce.scala:156) at scala.collection.Iterator.foreach(Iterator.scala:937) at scala.collection.Iterator.foreach$(Iterator.scala:937) at scala.collection.AbstractIterator.foreach(Iterator.scala:1425) at scala.collection.IterableLike.foreach(IterableLike.scala:70) at scala.collection.IterableLike.foreach$(IterableLike.scala:69) at scala.collection.AbstractIterable.foreach(Iterable.scala:54) at scala.collection.TraversableOnce.foldLeft(TraversableOnce.scala:156) at scala.collection.TraversableOnce.foldLeft$(TraversableOnce.scala:154) at scala.collection.AbstractTraversable.foldLeft(Traversable.scala:104) at org.apache.flink.table.planner.plan.optimize.program.FlinkChainedProgram.optimize(FlinkChainedProgram.scala:55) at org.apache.flink.table.planner.plan.optimize.StreamCommonSubGraphBasedOptimizer.optimizeTree(StreamCommonSubGraphBasedOptimizer.scala:176) at org.apache.flink.table.planner.plan.optimize.StreamCommonSubGraphBasedOptimizer.doOptimize(StreamCommonSubGraphBasedOptimizer.scala:83) at org.apache.flink.table.planner.plan.optimize.CommonSubGraphBasedOptimizer.optimize(CommonSubGraphBasedOptimizer.scala:87) at org.apache.flink.table.planner.delegation.PlannerBase.optimize(PlannerBase.scala:320) at org.apache.flink.table.planner.delegation.PlannerBase.translate(PlannerBase.scala:178) at org.apache.flink.table.api.bridge.internal.AbstractStreamTableEnvironmentImpl.toStreamInternal(AbstractStreamTableEnvironmentImpl.java:224) at org.apache.flink.table.api.bridge.internal.AbstractStreamTableEnvironmentImpl.toStreamInternal(AbstractStreamTableEnvironmentImpl.java:219) at org.apache.flink.table.api.bridge.scala.internal.StreamTableEnvironmentImpl.toDataStream(StreamTableEnvironmentImpl.scala:151) at org.apache.flink.table.api.bridge.scala.internal.StreamTableEnvironmentImpl.toDataStream(StreamTableEnvironmentImpl.scala:128) at org.apache.flink.table.api.bridge.scala.TableConversions.toDataStream(TableConversions.scala:60) at org.apache.flink.table.planner.runtime.stream.sql.WindowAggregateITCase.testEventTimeSessionWindowWithInvalidName(WindowAggregateITCase.scala:1239) at java.lang.reflect.Method.invoke(Method.java:498) at java.util.stream.ForEachOps$ForEachOp$OfRef.accept(ForEachOps.java:183) at java.util.stream.ReferencePipeline$3$1.accept(ReferencePipeline.java:193) at java.util.stream.ReferencePipeline$2$1.accept(ReferencePipeline.java:175) at java.util.stream.ReferencePipeline$3$1.accept(ReferencePipeline.java:193) at java.util.stream.ForEachOps$ForEachOp$OfRef.accept(ForEachOps.java:183) at java.util.stream.ReferencePipeline$3$1.accept(ReferencePipeline.java:193) at java.util.stream.ReferencePipeline$3$1.accept(ReferencePipeline.java:193) at java.util.Iterator.forEachRemaining(Iterator.java:116) at scala.collection.convert.Wrappers$IteratorWrapper.forEachRemaining(Wrappers.scala:26) at java.util.Spliterators$IteratorSpliterator.forEachRemaining(Spliterators.java:1801) at java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:482) at java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:472) at java.util.stream.ForEachOps$ForEachOp.evaluateSequential(ForEachOps.java:150) at java.util.stream.ForEachOps$ForEachOp$OfRef.evaluateSequential(ForEachOps.java:173) at java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234) at java.util.stream.ReferencePipeline.forEach(ReferencePipeline.java:485) at java.util.stream.ReferencePipeline$7$1.accept(ReferencePipeline.java:272) at java.util.ArrayList$ArrayListSpliterator.forEachRemaining(ArrayList.java:1384) at java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:482) at java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:472) at java.util.stream.ForEachOps$ForEachOp.evaluateSequential(ForEachOps.java:150) at java.util.stream.ForEachOps$ForEachOp$OfRef.evaluateSequential(ForEachOps.java:173) at java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234) at java.util.stream.ReferencePipeline.forEach(ReferencePipeline.java:485) at java.util.concurrent.RecursiveAction.exec(RecursiveAction.java:189) at java.util.concurrent.ForkJoinTask.doExec(ForkJoinTask.java:289) at java.util.concurrent.ForkJoinPool$WorkQueue.runTask(ForkJoinPool.java:1056) at java.util.concurrent.ForkJoinPool.runWorker(ForkJoinPool.java:1692) at java.util.concurrent.ForkJoinWorkerThread.run(ForkJoinWorkerThread.java:175) Suppressed: org.opentest4j.AssertionFailedError: Expecting value to be true but was false
      

      while the tumble window throws 

      java.lang.IllegalArgumentException: Tumbling Window parameters must satisfy size > 0, but got size -5000ms.
      	at org.apache.flink.util.Preconditions.checkArgument(Preconditions.java:138)	at org.apache.flink.table.runtime.operators.window.tvf.slicing.SliceAssigners$TumblingSliceAssigner.<init>(SliceAssigners.java:152)	at org.apache.flink.table.runtime.operators.window.tvf.slicing.SliceAssigners$TumblingSliceAssigner.<init>(SliceAssigners.java:136)	at org.apache.flink.table.runtime.operators.window.tvf.slicing.SliceAssigners.tumbling(SliceAssigners.java:65) 

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              Unassigned Unassigned
              xu_shuai_ Shuai Xu
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                Updated: