jorisvandenbossche commented on issue #34154:
URL: https://github.com/apache/arrow/issues/34154#issuecomment-1429574795
Ah, I see. Now, that actually works as well with the functions (something we
probably need to document better):
```
In [2]: pc.is_nan(pc.field("a"))
Out[2]: <pyarrow.compute.Expression is_nan(a)>
```
But given that we have a method on the expression for is_null, we could
maybe do that for is_nan as well (although is_nan is specific to one data type,
while is_null is generic).
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