beliefer commented on code in PR #10545:
URL:
https://github.com/apache/incubator-gluten/pull/10545#discussion_r2333071542
##########
gluten-substrait/src/main/scala/org/apache/gluten/execution/WholeStageTransformer.scala:
##########
@@ -446,10 +446,11 @@ case class WholeStageTransformer(child: SparkPlan,
materializeInput: Boolean = f
/**
* the whole stage contains NO [[LeafTransformSupport]]. this the
default case for:
- * 1. SCAN with clickhouse backend (check
ColumnarCollapseTransformStages#separateScanRDD())
- * 2. test case where query plan is constructed from simple
dataframes (e.g.
- * GlutenDataFrameAggregateSuite) in these cases, separate RDDs
takes care of SCAN as a
- * result, genFinalStageIterator rather than genFirstStageIterator
will be invoked
+ * 1. SCAN with clickhouse backend (check
Review Comment:
Updated.
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