Github user kiszk commented on a diff in the pull request: https://github.com/apache/spark/pull/17122#discussion_r104091814 --- Diff: sql/core/src/main/scala/org/apache/spark/sql/execution/WholeStageCodegenExec.scala --- @@ -206,6 +206,18 @@ trait CodegenSupport extends SparkPlan { def doConsume(ctx: CodegenContext, input: Seq[ExprCode], row: ExprCode): String = { throw new UnsupportedOperationException } + + /** + * for optimization to suppress shouldStop() in a loop of WholeStageCodegen + * + * isShouldStopRequired: require to insert shouldStop() into the loop if true + */ + def isShouldStopRequired: Boolean = { + return shouldStopRequired && !(this.parent != null && !this.parent.isShouldStopRequired) --- End diff -- Thank you for your suggestion. However, it caused an assertion failure at `"SPARK-7150 range api"` in DataFrameRangeSuite. In the failure case, `isShouldStopRequired` is called in the class hierarchy by `parent`. ` RangeExec -> FilterExec -> WholeStageCodegenExec`
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