edponce commented on a change in pull request #12147:
URL: https://github.com/apache/arrow/pull/12147#discussion_r784277410
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File path: cpp/src/arrow/table.cc
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@@ -612,7 +612,8 @@ Status
TableBatchReader::ReadNext(std::shared_ptr<RecordBatch>* out) {
}
// Determine the minimum contiguous slice across all columns
- int64_t chunksize = std::min(table_.num_rows(), max_chunksize_);
+ int64_t chunksize =
+ std::min(table_.num_rows() - absolute_row_position_, max_chunksize_);
Review comment:
Basically, this adapts for the "loop remainder"
```c++
int64_t i = 0;
for (; i < table_.num_rows(); i += max_chunksize_) {
process(max_chunksize_);
}
if (i < table_.num_rows()) {
process(table_.num_rows() - i);
}
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