Light-City opened a new issue, #38558:
URL: https://github.com/apache/arrow/issues/38558
### Describe the bug, including details regarding any error messages,
version, and platform.
Currently, NullPlacement is a global control, and this parameter is used for
all sortkeys. However, for databases like pg, it should be one for each
sortkey, for example:
```
order by i nulls first, j, k nulls first;
```
code is
```
/// Column key(s) to order by and how to order by these sort keys.
std::vector<SortKey> sort_keys;
/// Whether nulls and NaNs are placed at the start or at the end
NullPlacement null_placement;
```
### Component(s)
C++
--
This is an automated message from the Apache Git Service.
To respond to the message, please log on to GitHub and use the
URL above to go to the specific comment.
To unsubscribe, e-mail: [email protected]
For queries about this service, please contact Infrastructure at:
[email protected]
