timsaucer opened a new issue, #19947:
URL: https://github.com/apache/datafusion/issues/19947
### Describe the bug
When you have a ListArray and the inner field is non-nullable, `array_sort`
generates an error in 51.0.0. See below for steps to reproduce.
### To Reproduce
The following generates an error:
```sql
select array_sort(arrow_cast(make_array(1, 3, 5, -5), 'List(non-null
Int32)'));
```
> DataFusion error: Internal("Assertion failed: result_data_type ==
*expected_type: Function 'array_sort' returned value of type 'List(Field {
data_type: Int32 })' while the following type was promised at planning time and
expected: 'List(Field { data_type: Int32, nullable: true })'")
### Expected behavior
You cannot do the above sql with 50.0.0 but I did test by manually creating
and registering a record batch that has a list array with inner non-nullable
field. It passes in 50.0.0 and fails in 51.0.0.
### Additional context
I believe this was introduced in
https://github.com/apache/datafusion/pull/17657
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