alamb commented on issue #1716:
URL:
https://github.com/apache/arrow-datafusion/issues/1716#issuecomment-1026205295
FWIW `(A ^ !A)` is NOT always `false` because of .... 🥁 NULL
```sql
alamb=# select null AND (not null);
?column?
----------
(1 row)
```
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