neilconway opened a new issue, #25222:
URL: https://github.com/apache/datafusion/issues/25222
### Describe the bug
The result is computed from the input's offset ranges without considering
the validity buffer; it is possible for the validity buffer to indicate that a
value is NULL, in which case non-empty offsets are allowed but should be
ignored.
### To Reproduce
```sql
CREATE TABLE t AS VALUES ([1,2,3], [1,2,3], 1), ([4,5,6], [7], 2);
CREATE VIEW v AS SELECT column3 AS id, column1 AS l, NULLIF(column1,
column2) AS nl FROM t;
SELECT id, nl, array_append(nl, 9), array_prepend(9, nl) FROM v ORDER BY
id;
-- row 1: nl = NULL → [1, 2, 3, 9] and [9, 1, 2, 3]
-- expected (matches a true NULL input): [9] and [9]
```
### Expected behavior
_No response_
### Additional context
_No response_
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