[ 
https://issues.apache.org/jira/browse/SPARK-17098?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
 ]

Herman van Hovell resolved SPARK-17098.
---------------------------------------
       Resolution: Fixed
         Assignee: Dongjoon Hyun
    Fix Version/s: 2.1.0
                   2.0.1

> "SELECT COUNT(NULL) OVER ()" throws UnsupportedOperationException during 
> analysis
> ---------------------------------------------------------------------------------
>
>                 Key: SPARK-17098
>                 URL: https://issues.apache.org/jira/browse/SPARK-17098
>             Project: Spark
>          Issue Type: Bug
>          Components: SQL
>    Affects Versions: 2.0.0
>            Reporter: Josh Rosen
>            Assignee: Dongjoon Hyun
>             Fix For: 2.0.1, 2.1.0
>
>
> Running
> {code}
> SELECT COUNT(NULL) OVER ()
> {code}
> throws an UnsupportedOperationException during analysis:
> {code}
> java.lang.UnsupportedOperationException: Cannot evaluate expression: cast(0 
> as bigint) windowspecdefinition(ROWS BETWEEN UNBOUNDED PRECEDING AND 
> UNBOUNDED FOLLOWING)
>       at 
> org.apache.spark.sql.catalyst.expressions.Unevaluable$class.eval(Expression.scala:221)
>       at 
> org.apache.spark.sql.catalyst.expressions.WindowExpression.eval(windowExpressions.scala:288)
>       at 
> org.apache.spark.sql.catalyst.optimizer.ConstantFolding$$anonfun$apply$18$$anonfun$applyOrElse$3.applyOrElse(Optimizer.scala:759)
>       at 
> org.apache.spark.sql.catalyst.optimizer.ConstantFolding$$anonfun$apply$18$$anonfun$applyOrElse$3.applyOrElse(Optimizer.scala:752)
>       at 
> org.apache.spark.sql.catalyst.trees.TreeNode$$anonfun$3.apply(TreeNode.scala:279)
>       at 
> org.apache.spark.sql.catalyst.trees.TreeNode$$anonfun$3.apply(TreeNode.scala:279)
>       at 
> org.apache.spark.sql.catalyst.trees.CurrentOrigin$.withOrigin(TreeNode.scala:69)
>       at 
> org.apache.spark.sql.catalyst.trees.TreeNode.transformDown(TreeNode.scala:278)
>       at 
> org.apache.spark.sql.catalyst.trees.TreeNode$$anonfun$transformDown$1.apply(TreeNode.scala:284)
>       at 
> org.apache.spark.sql.catalyst.trees.TreeNode$$anonfun$transformDown$1.apply(TreeNode.scala:284)
>       at 
> org.apache.spark.sql.catalyst.trees.TreeNode$$anonfun$5.apply(TreeNode.scala:321)
>       at 
> org.apache.spark.sql.catalyst.trees.TreeNode.mapProductIterator(TreeNode.scala:179)
>       at 
> org.apache.spark.sql.catalyst.trees.TreeNode.transformChildren(TreeNode.scala:319)
>       at 
> org.apache.spark.sql.catalyst.trees.TreeNode.transformDown(TreeNode.scala:284)
>       at 
> org.apache.spark.sql.catalyst.plans.QueryPlan.transformExpressionDown$1(QueryPlan.scala:156)
>       at 
> org.apache.spark.sql.catalyst.plans.QueryPlan.org$apache$spark$sql$catalyst$plans$QueryPlan$$recursiveTransform$1(QueryPlan.scala:166)
>       at 
> org.apache.spark.sql.catalyst.plans.QueryPlan$$anonfun$org$apache$spark$sql$catalyst$plans$QueryPlan$$recursiveTransform$1$1.apply(QueryPlan.scala:170)
>       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$class.map(TraversableLike.scala:234)
>       at scala.collection.AbstractTraversable.map(Traversable.scala:104)
>       at 
> org.apache.spark.sql.catalyst.plans.QueryPlan.org$apache$spark$sql$catalyst$plans$QueryPlan$$recursiveTransform$1(QueryPlan.scala:170)
>       at 
> org.apache.spark.sql.catalyst.plans.QueryPlan$$anonfun$4.apply(QueryPlan.scala:175)
>       at 
> org.apache.spark.sql.catalyst.trees.TreeNode.mapProductIterator(TreeNode.scala:179)
>       at 
> org.apache.spark.sql.catalyst.plans.QueryPlan.transformExpressionsDown(QueryPlan.scala:175)
>       at 
> org.apache.spark.sql.catalyst.optimizer.ConstantFolding$$anonfun$apply$18.applyOrElse(Optimizer.scala:752)
>       at 
> org.apache.spark.sql.catalyst.optimizer.ConstantFolding$$anonfun$apply$18.applyOrElse(Optimizer.scala:751)
>       at 
> org.apache.spark.sql.catalyst.trees.TreeNode$$anonfun$3.apply(TreeNode.scala:279)
>       at 
> org.apache.spark.sql.catalyst.trees.TreeNode$$anonfun$3.apply(TreeNode.scala:279)
>       at 
> org.apache.spark.sql.catalyst.trees.CurrentOrigin$.withOrigin(TreeNode.scala:69)
>       at 
> org.apache.spark.sql.catalyst.trees.TreeNode.transformDown(TreeNode.scala:278)
>       at 
> org.apache.spark.sql.catalyst.trees.TreeNode$$anonfun$transformDown$1.apply(TreeNode.scala:284)
>       at 
> org.apache.spark.sql.catalyst.trees.TreeNode$$anonfun$transformDown$1.apply(TreeNode.scala:284)
>       at 
> org.apache.spark.sql.catalyst.trees.TreeNode$$anonfun$5.apply(TreeNode.scala:321)
>       at 
> org.apache.spark.sql.catalyst.trees.TreeNode.mapProductIterator(TreeNode.scala:179)
>       at 
> org.apache.spark.sql.catalyst.trees.TreeNode.transformChildren(TreeNode.scala:319)
>       at 
> org.apache.spark.sql.catalyst.trees.TreeNode.transformDown(TreeNode.scala:284)
>       at 
> org.apache.spark.sql.catalyst.trees.TreeNode$$anonfun$transformDown$1.apply(TreeNode.scala:284)
>       at 
> org.apache.spark.sql.catalyst.trees.TreeNode$$anonfun$transformDown$1.apply(TreeNode.scala:284)
>       at 
> org.apache.spark.sql.catalyst.trees.TreeNode$$anonfun$5.apply(TreeNode.scala:321)
>       at 
> org.apache.spark.sql.catalyst.trees.TreeNode.mapProductIterator(TreeNode.scala:179)
>       at 
> org.apache.spark.sql.catalyst.trees.TreeNode.transformChildren(TreeNode.scala:319)
>       at 
> org.apache.spark.sql.catalyst.trees.TreeNode.transformDown(TreeNode.scala:284)
>       at 
> org.apache.spark.sql.catalyst.trees.TreeNode$$anonfun$transformDown$1.apply(TreeNode.scala:284)
>       at 
> org.apache.spark.sql.catalyst.trees.TreeNode$$anonfun$transformDown$1.apply(TreeNode.scala:284)
>       at 
> org.apache.spark.sql.catalyst.trees.TreeNode$$anonfun$5.apply(TreeNode.scala:321)
>       at 
> org.apache.spark.sql.catalyst.trees.TreeNode.mapProductIterator(TreeNode.scala:179)
>       at 
> org.apache.spark.sql.catalyst.trees.TreeNode.transformChildren(TreeNode.scala:319)
>       at 
> org.apache.spark.sql.catalyst.trees.TreeNode.transformDown(TreeNode.scala:284)
>       at 
> org.apache.spark.sql.catalyst.trees.TreeNode.transform(TreeNode.scala:268)
>       at 
> org.apache.spark.sql.catalyst.optimizer.ConstantFolding$.apply(Optimizer.scala:751)
>       at 
> org.apache.spark.sql.catalyst.optimizer.ConstantFolding$.apply(Optimizer.scala:750)
>       at 
> org.apache.spark.sql.catalyst.rules.RuleExecutor$$anonfun$execute$1$$anonfun$apply$1.apply(RuleExecutor.scala:85)
>       at 
> org.apache.spark.sql.catalyst.rules.RuleExecutor$$anonfun$execute$1$$anonfun$apply$1.apply(RuleExecutor.scala:82)
>       at 
> scala.collection.IndexedSeqOptimized$class.foldl(IndexedSeqOptimized.scala:57)
>       at 
> scala.collection.IndexedSeqOptimized$class.foldLeft(IndexedSeqOptimized.scala:66)
>       at scala.collection.mutable.WrappedArray.foldLeft(WrappedArray.scala:35)
>       at 
> org.apache.spark.sql.catalyst.rules.RuleExecutor$$anonfun$execute$1.apply(RuleExecutor.scala:82)
>       at 
> org.apache.spark.sql.catalyst.rules.RuleExecutor$$anonfun$execute$1.apply(RuleExecutor.scala:74)
>       at scala.collection.immutable.List.foreach(List.scala:381)
>       at 
> org.apache.spark.sql.catalyst.rules.RuleExecutor.execute(RuleExecutor.scala:74)
>       at 
> org.apache.spark.sql.execution.QueryExecution.optimizedPlan$lzycompute(QueryExecution.scala:74)
>       at 
> org.apache.spark.sql.execution.QueryExecution.optimizedPlan(QueryExecution.scala:74)
>       at 
> org.apache.spark.sql.execution.QueryExecution.sparkPlan$lzycompute(QueryExecution.scala:78)
>       at 
> org.apache.spark.sql.execution.QueryExecution.sparkPlan(QueryExecution.scala:76)
>       at 
> org.apache.spark.sql.execution.QueryExecution.executedPlan$lzycompute(QueryExecution.scala:83)
>       at 
> org.apache.spark.sql.execution.QueryExecution.executedPlan(QueryExecution.scala:83)
>       at org.apache.spark.sql.Dataset.withTypedCallback(Dataset.scala:2558)
>       at org.apache.spark.sql.Dataset.head(Dataset.scala:1924)
>       at org.apache.spark.sql.Dataset.take(Dataset.scala:2139)
> {code}
> Given that 
> {code}
> SELECT COUNT(0) OVER ()
> {code}
> works fine my hunch is that this is uncovering a bug in the ordering of our 
> optimizer rules or a bug in the constant-folding rule itself. This particular 
> example is probably unimportant by itself but may be an indicator of other 
> problems.



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