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https://issues.apache.org/jira/browse/ARROW-11412?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Roman Karlstetter updated ARROW-11412:
--------------------------------------
Description:
There's a problem with boolean "and", "or" and "not" expressions when creating
them in python (or I'm doing something completely stupid).
{code:java}
>>> import pyarrow
>>> pyarrow.__version__
'3.0.0'
>>> 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).
This happens with pyarrow3 and pyarrow2
was:
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).
Summary: [Python] (C++?) Expression evaluation problem for logical
boolean expressions (and, or, not) (was: [Python] (C++?) Expression evaluation
problem for "and" and "or" expressions)
> [Python] (C++?) Expression evaluation problem for logical boolean expressions
> (and, or, not)
> --------------------------------------------------------------------------------------------
>
> Key: ARROW-11412
> URL: https://issues.apache.org/jira/browse/ARROW-11412
> Project: Apache Arrow
> Issue Type: Bug
> Components: C++, Python
> Affects Versions: 2.0.0, 3.0.0
> Reporter: Roman Karlstetter
> Priority: Major
>
> There's a problem with boolean "and", "or" and "not" expressions when
> creating them in python (or I'm doing something completely stupid).
>
> {code:java}
> >>> import pyarrow
> >>> pyarrow.__version__
> '3.0.0'
> >>> 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).
>
> This happens with pyarrow3 and pyarrow2
>
>
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