appletreeisyellow commented on issue #9171:
URL:
https://github.com/apache/arrow-datafusion/issues/9171#issuecomment-1942818905
I think case expression can be wrapped around the `OR` clause as well. For
example, `x = 8 OR x < 0` can be rewrite into
```
CASE
WHEN x_null_count = x_row_count THEN false
ELSE (x_min <= 8 AND 8 <= x_max) OR x_max < 0
END
```
If we know that a container has column `x` to be entirely `NULL`, this
container can be skipped, regardless the result of `OR` clause is true or false.
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