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    Details

    • Type: Sub-task
    • Status: Open
    • Priority: Major
    • Resolution: Unresolved
    • Affects Version/s: None
    • Fix Version/s: None
    • Component/s: Table SQL / Runtime
    • Labels:
      None

      Description

      Casts of collection types are not supported yet.
      E.g. query: "SELECT cast (a as ARRAY<double>) FROM (VALUES (array[3, 2, 1])) AS T(a)"

      fails with:

      org.apache.flink.table.planner.codegen.CodeGenException: Unsupported cast from 'ARRAY<INT NOT NULL> NOT NULL' to 'ARRAY<DOUBLE> NOT NULL'.
      
      	at org.apache.flink.table.planner.codegen.calls.ScalarOperatorGens$.generateCast(ScalarOperatorGens.scala:1284)
      	at org.apache.flink.table.planner.codegen.ExprCodeGenerator.generateCallExpression(ExprCodeGenerator.scala:691)
      	at org.apache.flink.table.planner.codegen.ExprCodeGenerator.visitCall(ExprCodeGenerator.scala:486)
      	at org.apache.flink.table.planner.codegen.ExprCodeGenerator.visitCall(ExprCodeGenerator.scala:52)
      	at org.apache.calcite.rex.RexCall.accept(RexCall.java:288)
      	at org.apache.flink.table.planner.codegen.ExprCodeGenerator.generateExpression(ExprCodeGenerator.scala:132)
      	at org.apache.flink.table.planner.codegen.CalcCodeGenerator$$anonfun$5.apply(CalcCodeGenerator.scala:152)
      	at org.apache.flink.table.planner.codegen.CalcCodeGenerator$$anonfun$5.apply(CalcCodeGenerator.scala:152)
      	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$class.map(TraversableLike.scala:234)
      	at scala.collection.AbstractTraversable.map(Traversable.scala:104)
      	at org.apache.flink.table.planner.codegen.CalcCodeGenerator$.produceProjectionCode$1(CalcCodeGenerator.scala:152)
      	at org.apache.flink.table.planner.codegen.CalcCodeGenerator$.generateProcessCode(CalcCodeGenerator.scala:179)
      	at org.apache.flink.table.planner.codegen.CalcCodeGenerator$.generateCalcOperator(CalcCodeGenerator.scala:49)
      	at org.apache.flink.table.planner.plan.nodes.physical.batch.BatchExecCalc.translateToPlanInternal(BatchExecCalc.scala:62)
      	at org.apache.flink.table.planner.plan.nodes.physical.batch.BatchExecCalc.translateToPlanInternal(BatchExecCalc.scala:38)
      	at org.apache.flink.table.planner.plan.nodes.exec.ExecNode$class.translateToPlan(ExecNode.scala:58)
      	at org.apache.flink.table.planner.plan.nodes.physical.batch.BatchExecCalcBase.translateToPlan(BatchExecCalcBase.scala:42)
      	at org.apache.flink.table.planner.plan.nodes.physical.batch.BatchExecSink.translateToTransformation(BatchExecSink.scala:131)
      	at org.apache.flink.table.planner.plan.nodes.physical.batch.BatchExecSink.translateToPlanInternal(BatchExecSink.scala:97)
      	at org.apache.flink.table.planner.plan.nodes.physical.batch.BatchExecSink.translateToPlanInternal(BatchExecSink.scala:49)
      	at org.apache.flink.table.planner.plan.nodes.exec.ExecNode$class.translateToPlan(ExecNode.scala:58)
      	at org.apache.flink.table.planner.plan.nodes.physical.batch.BatchExecSink.translateToPlan(BatchExecSink.scala:49)
      	at org.apache.flink.table.planner.delegation.BatchPlanner$$anonfun$translateToPlan$1.apply(BatchPlanner.scala:72)
      	at org.apache.flink.table.planner.delegation.BatchPlanner$$anonfun$translateToPlan$1.apply(BatchPlanner.scala:71)
      	at scala.collection.TraversableLike$$anonfun$map$1.apply(TraversableLike.scala:234)
      	at scala.collection.TraversableLike$$anonfun$map$1.apply(TraversableLike.scala:234)
      	at scala.collection.Iterator$class.foreach(Iterator.scala:891)
      	at scala.collection.AbstractIterator.foreach(Iterator.scala:1334)
      	at scala.collection.IterableLike$class.foreach(IterableLike.scala:72)
      	at scala.collection.AbstractIterable.foreach(Iterable.scala:54)
      	at scala.collection.TraversableLike$class.map(TraversableLike.scala:234)
      	at scala.collection.AbstractTraversable.map(Traversable.scala:104)
      	at org.apache.flink.table.planner.delegation.BatchPlanner.translateToPlan(BatchPlanner.scala:71)
      	at org.apache.flink.table.planner.delegation.PlannerBase.translate(PlannerBase.scala:153)
      ...
      

      Similar behaviour can be observed for MULTISET, MAP, ROW

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            • Assignee:
              Unassigned
              Reporter:
              dwysakowicz Dawid Wysakowicz

              Dates

              • Created:
                Updated:

                Issue deployment