WinkerDu opened a new issue, #2609:
URL: https://github.com/apache/arrow-datafusion/issues/2609
**Is your feature request related to a problem or challenge? Please describe
what you are trying to do.**
There is bug when binary mathematical operators `+`, `-`, `*`, `/`, `%` work
with literal `NULL`
**To reproduce**
```
> select column1 + NULL from (VALUES (1, 2.3), (2, 5.4)) as t
Plan("'Int64 + Null' can't be evaluated because there isn't a common type to
coerce the types to")
```
Postgres works like
```
# select column1 + NULL from (VALUES (1, 2.3), (2, 5.4)) as t;
?column?
----------
(2 rows)
```
**Describe the solution you'd like**
- Adjusts `mathematics_numerical_coercion` in `binary_rule.rs`, make it work
well on condition that at most one side of lhs or rhs is NULL
- Enhances `compute_op_scalar` macro in `binary.rs` to produce NULL array
when scalar value is `NULL`
**Describe alternatives you've considered**
No.
**Additional context**
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