Github user dilipbiswal commented on a diff in the pull request:

    https://github.com/apache/spark/pull/17214#discussion_r105027190
  
    --- Diff: 
sql/core/src/main/scala/org/apache/spark/sql/execution/QueryExecution.scala ---
    @@ -46,9 +46,13 @@ class QueryExecution(val sparkSession: SparkSession, val 
logical: LogicalPlan) {
       protected def planner = sparkSession.sessionState.planner
     
       def assertAnalyzed(): Unit = {
    -    try sparkSession.sessionState.analyzer.checkAnalysis(analyzed) catch {
    --- End diff --
    
    @cloud-fan Actually thats what i also thought Wenchen. But it seems like if 
an exception occurred before the assignment to lazy val happens , then it 
treats it like the first evaluation never happened ?


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