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      Apache Calcite's tracing functionality plays an important role when we debug issues related to either logical planning or physical planning in Drill.

      However, since Drill-705 introduced a HepPlanner to do query planning for Window Function, the tracing functionality is broken.

      For instance, if I turn on Calcite tracing and set the tracing level to "FINER", as following:

      org.apache.calcite.plan.RelOptPlanner.level = FINER
      

      When submit a query to Drill, Drill hit AssertionError.

      SYSTEM ERROR: java.lang.AssertionError: Internal error: should never get here
      
      [Error Id: 3410c3b4-726f-487b-a1c4-287b6ae724aa on 172.16.0.120:31010]
      

      The root cause of this Assertion is here :

      Caused by: java.lang.AssertionError: Internal error: should never get here
        at org.apache.calcite.util.Util.newInternal(Util.java:775) ~[calcite-core-1.1.0-drill-r7.jar:1.1.0-drill-r7]
        at org.apache.calcite.plan.hep.HepRelVertex.computeSelfCost(HepRelVertex.java:68) ~[calcite-core-1.1.0-drill-r7.jar:1.1.0-drill-r7]
        at org.apache.calcite.rel.metadata.RelMdPercentageOriginalRows.getNonCumulativeCost(RelMdPercentageOriginalRows.java:165) ~[calcite-core-1.1.0-drill-r7.jar:1.1.0-drill-r7]
      

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            • Assignee:
              jni Jinfeng Ni
              Reporter:
              jni Jinfeng Ni
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