Github user viirya commented on a diff in the pull request: https://github.com/apache/spark/pull/22630#discussion_r223318798 --- Diff: sql/core/src/main/scala/org/apache/spark/sql/execution/WholeStageCodegenExec.scala --- @@ -362,8 +362,15 @@ trait CodegenSupport extends SparkPlan { final def limitNotReachedCond: String = { // InputAdapter is also a leaf node. val isLeafNode = children.isEmpty || this.isInstanceOf[InputAdapter] - assert(isLeafNode || this.isInstanceOf[BlockingOperatorWithCodegen], - "only leaf nodes and blocking nodes need to call this method in its data producing loop.") + if (isLeafNode || this.isInstanceOf[BlockingOperatorWithCodegen]) { --- End diff -- `if (!isLeafNode && !this.isInstanceOf[BlockingOperatorWithCodegen])`?
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