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[NSE-1]fix columnar wscg on empty recordbatch #36

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Jan 14, 2021
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[NSE-1]fix columnar wscg on empty recordbatch #36

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2 changes: 2 additions & 0 deletions core/src/main/scala/com/intel/oap/execution/ColumnarWholeStageCodegenExec.scala
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Original file line number Diff line number Diff line change
Expand Up @@ -344,6 +344,7 @@ case class ColumnarWholeStageCodegenExec(child: SparkPlan)(val codegenStageId: I
var build_elapse_internal: Long = 0
while (depIter.hasNext) {
val dep_cb = depIter.next()
if (dep_cb.numRows > 0) {
(0 until dep_cb.numCols).toList.foreach(i =>
dep_cb.column(i).asInstanceOf[ArrowWritableColumnVector].retain())
buildRelationBatchHolder += dep_cb
Expand All @@ -353,6 +354,7 @@ case class ColumnarWholeStageCodegenExec(child: SparkPlan)(val codegenStageId: I
ConverterUtils.releaseArrowRecordBatch(dep_rb)
build_elapse += System.nanoTime() - beforeEval
build_elapse_internal += System.nanoTime() - beforeEval
}
}
buildTime += (build_elapse_internal / 1000000)
dependentKernels += hashRelationKernel
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