comphead commented on issue #10583:
URL: https://github.com/apache/datafusion/issues/10583#issuecomment-3358452678
@viirya mind if I take this?
DuckDB example
```
D CREATE TABLE IF NOT EXISTS test_table(c1 INT, c2 INT);
D insert into t1 VALUES
(1, 1),
(2, 2),
(3, 3),
(4, null),
(null, 0);
D SELECT * FROM test_table t1 WHERE (c1 NOT IN (SELECT c2 FROM test_table))
= true;
┌───────┬───────┐
│ c1 │ c2 │
│ int32 │ int32 │
├───────┴───────┤
│ 0 rows │
└───────────────┘
```
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