jorisvandenbossche commented on code in PR #40064:
URL: https://github.com/apache/arrow/pull/40064#discussion_r1489076349
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cpp/src/arrow/record_batch.cc:
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@@ -247,6 +248,109 @@ Result<std::shared_ptr<StructArray>>
RecordBatch::ToStructArray() const {
/*offset=*/0);
}
+template <typename DataType>
+inline void ConvertColumnsToTensor(const RecordBatch& batch, uint8_t* out) {
+ using CType = typename arrow::TypeTraits<DataType>::CType;
+ auto* out_values = reinterpret_cast<CType*>(out);
+
+ // Loop through all of the columns
+ for (int i = 0; i < batch.num_columns(); ++i) {
+ const auto& arr = *batch.column(i);
+ auto data = arr.data();
+ const auto data_offset = data->offset * sizeof(CType);
+ const auto& in_values =
+ reinterpret_cast<const CType*>(data->buffers[1]->data() + data_offset);
Review Comment:
Is this the same as `data->GetValues<CType>(1)` ?
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