ntjohnson1 opened a new issue, #1233:
URL: https://github.com/apache/datafusion-python/issues/1233
**Describe the bug**
`NaN` < `<float>` and `NaN` > `<float>` should both yield false.
However I don't get that behavior in datafusion.
**To Reproduce**
I reproduced this on 48 and 49
```python
import numpy as np
import pyarrow as pa
import pyarrow.compute as pc
import datafusion as dfn
from datafusion import col
def py_arrow_example() -> None:
nan = pa.array([np.nan], type=pa.float64())
not_nan = pa.array([1.0], type=pa.float64())
print(f"Less: {pc.less(nan, not_nan)}\nGreater: {pc.greater(nan,
not_nan)}")
def datafusion_example() -> None:
table = pa.table({"a": [np.nan], "b": [1.0]})
ctx = dfn.SessionContext()
df = ctx.from_arrow(table)
result = df.select(
(col("a") < col("b")).alias("less"),
(col("a") > col("b")).alias("greater"),
)
print(result)
if __name__ == "__main__":
py_arrow_example()
datafusion_example()
```
Output
```console
Less: [
false
]
Greater: [
false
]
DataFrame()
+-------+---------+
| less | greater |
+-------+---------+
| false | true |
+-------+---------+
```
**Expected behavior**
False for both comparisons or clearer documentation for the handling.
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