jonahgao opened a new pull request, #6799:
URL: https://github.com/apache/arrow-datafusion/pull/6799
# Which issue does this PR close?
None
# Rationale for this change
Similar to #6786 .
We can safely assume that the `InList` expr is non-nullalbe only if all of
its subexpressions are non-nullable.
An example of a nullable expression is:
```
DataFusion CLI v27.0.0
❯ select 1 in(2, null);
+----------------------------------------------------------------------+
| Int64(1) IN (Map { iter: Iter([Literal(Int64(2)), Literal(NULL)]) }) |
+----------------------------------------------------------------------+
| |
+----------------------------------------------------------------------+
```
# What changes are included in this PR?
- fix incorrect nullability of `InList` expr
- cleaner code for insert.rs
# Are these changes tested?
Yes
# Are there any user-facing changes?
No
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