binmahone opened a new issue, #38865:
URL: https://github.com/apache/arrow/issues/38865
### Describe the enhancement requested
Currently GetRecordBatchReader API accepts row_group_indices and
column_indices. It would be nice to extend the API to accept one more
parameter: A row_ranges indicating a subset of rows to be retrieved. With the
provided row_ranges, RecordBatchReader can skip unnecessary pages (by comparing
the row_ranges with the might-exist page index) as well as unwanted rows.
```c++
::arrow::Status GetRecordBatchReader(const std::vector<int>&
row_group_indices,
const std::vector<int>&
column_indices,
std::shared_ptr<::arrow::RecordBatchReader>* out);
```
API clients can query page index or other kinds of index (e.g. external
secondary index) to construct the row_ranges.
### Component(s)
C++
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