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https://issues.apache.org/jira/browse/ARROW-5853?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16884816#comment-16884816
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Blake Haugen commented on ARROW-5853:
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I would like to work on this issue to get familiar with the codebase so my
apologies if this is a dumb question. I think I have something partially
working but I am wondering what the expected behavior is if you pass something
like an integer array as the filter.
When I passed it an integer array of 0s and 1s I get a seg fault. My C++ is
pretty rusty but in poking around in 'filter.cc' I suspect it may be something
related to the 'checked_pointer_cast' in 'FilterKernel::Call'.
It doesn't look like there are any C++ tests with an array other than
BooleanArray. Should this function check that the Array is boolean and throw a
type error if it isn't or should this be doing a different cast?
> [Python] Expose boolean filter kernel on Array
> ----------------------------------------------
>
> Key: ARROW-5853
> URL: https://issues.apache.org/jira/browse/ARROW-5853
> Project: Apache Arrow
> Issue Type: Improvement
> Components: Python
> Reporter: Joris Van den Bossche
> Priority: Major
>
> Expose the filter kernel (https://issues.apache.org/jira/browse/ARROW-1558)
> on the python Array class.
> Could be done as {{.filter(mask)}} method and/or in {{\_\_getitem\_\_}}.
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