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Posted to dev@arrow.apache.org by "Joris Van den Bossche (Jira)" <ji...@apache.org> on 2020/03/23 13:46:00 UTC
[jira] [Created] (ARROW-8186) [Python] Dataset expression !=
returns bool instead of expression for invalid value
Joris Van den Bossche created ARROW-8186:
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Summary: [Python] Dataset expression != returns bool instead of expression for invalid value
Key: ARROW-8186
URL: https://issues.apache.org/jira/browse/ARROW-8186
Project: Apache Arrow
Issue Type: Bug
Components: Python
Reporter: Joris Van den Bossche
It's a bit a strange case, but eg when doing {{!= {3}}} you get a boolean result instead of an expression:
{code}
In [8]: ds.field('col') != 3
Out[8]: <pyarrow.dataset.ComparisonExpression (col != 3:int64)>
In [9]: ds.field('col') != {3}
Out[9]: True
{code}
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