Roman Karlstetter created ARROW-11412:
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Summary: [Python] (C++?) Expression evaluation problem for "and"
and "or" expressions
Key: ARROW-11412
URL: https://issues.apache.org/jira/browse/ARROW-11412
Project: Apache Arrow
Issue Type: Bug
Components: C++, Python
Affects Versions: 3.0.0, 2.0.0
Reporter: Roman Karlstetter
There's a problem with boolean "and" and "or" expressions when creating them in
python (or I'm doing something completely stupid).
{code:java}
>>> import pyarrow.dataset as ds
>>> ds. scalar(False) and ds.scalar(True) # <--- I expect false
<pyarrow.dataset.Expression true>
>>> ds.scalar(True) and ds.scalar(False) # this works
<pyarrow.dataset.Expression false>
>>> ds.scalar(True) or ds.scalar(False) # this works
<pyarrow.dataset.Expression true>
>>> ds.scalar(False) or ds.scalar(True) # <--- I expect true
<pyarrow.dataset.Expression false>
>>> not ds.scalar(True) # this works
>>>
>>>
False
>>> not ds.scalar(False) <--- I expect true
>>>
>>>
>>>
False
{code}
I tried to figure out what goes wrong here, but there are no obvious problems
in the python code, same for C++ (but I didn't quite understand everything of
it yet).
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