jinchengchenghh commented on code in PR #5799:
URL: https://github.com/apache/incubator-gluten/pull/5799#discussion_r1606138502
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cpp/velox/operators/serializer/VeloxColumnarToRowConverter.cc:
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@@ -16,46 +16,61 @@
*/
#include "VeloxColumnarToRowConverter.h"
+#include <velox/common/base/SuccinctPrinter.h>
+#include <cstdint>
#include "memory/VeloxColumnarBatch.h"
+#include "utils/exception.h"
#include "velox/row/UnsafeRowDeserializers.h"
#include "velox/row/UnsafeRowFast.h"
using namespace facebook;
namespace gluten {
-void VeloxColumnarToRowConverter::refreshStates(facebook::velox::RowVectorPtr
rowVector) {
- numRows_ = rowVector->size();
+int64_t VeloxColumnarToRowConverter::refreshStates(
+ facebook::velox::RowVectorPtr rowVector,
+ int64_t rowId,
+ int64_t memoryThreshold) {
+ auto vectorLength = rowVector->size();
numCols_ = rowVector->childrenSize();
fast_ = std::make_unique<velox::row::UnsafeRowFast>(rowVector);
size_t totalMemorySize = 0;
if (auto fixedRowSize =
velox::row::UnsafeRowFast::fixedRowSize(velox::asRowType(rowVector->type()))) {
- totalMemorySize += fixedRowSize.value() * numRows_;
+ GLUTEN_CHECK(
+ memoryThreshold > fixedRowSize.value(),
+ "Only 1 row exceed Column2RowMemoryThreshold, which is " +
velox::succinctBytes(memoryThreshold));
+ auto rowSize = fixedRowSize.value();
+ numRows_ = std::min<int64_t>(memoryThreshold / rowSize, vectorLength -
rowId);
Review Comment:
Why is it vectorLength - rowId? it might be negative?
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