jackwener commented on PR #9018:
URL: https://github.com/apache/incubator-doris/pull/9018#issuecomment-1098809018
> > =, >= , <= to is not null;
>
> This still changes the behavior of `null =/>=/<= null`, these output
should be `null`, not `0`.
` =, >=, <= ` implicitly include `is null`.
It's from pg:
```sql
test=# Insert into scientist
test-# values (NULL, NULL, NULL);
INSERT 0 1
test=# select * from scientist
;
id | firstname | lastname
----+-----------+----------
1 | albert | einstein
2 | isaac | newton
3 | marie | curie
| |
(4 rows)
test=# select * from scientist where id > 0;
id | firstname | lastname
----+-----------+----------
1 | albert | einstein
2 | isaac | newton
3 | marie | curie
(3 rows)
```
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