[jira] [Assigned] (ARROW-11341) [Python] [Gandiva] Check parameters are not None

["Todd Farmer (Jira)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/ARROW-11341?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Todd Farmer reassigned ARROW-11341:
-----------------------------------

    Assignee:     (was: Will Jones)

This issue was last updated over 90 days ago, which may be an indication it is no longer being actively worked. To better reflect the current state, the issue is being unassigned. Please feel free to re-take assignment of the issue if it is being actively worked, or if you plan to start that work soon.

> [Python] [Gandiva] Check parameters are not None
> ------------------------------------------------
>
>                 Key: ARROW-11341
>                 URL: https://issues.apache.org/jira/browse/ARROW-11341
>             Project: Apache Arrow
>          Issue Type: Bug
>          Components: C++ - Gandiva, Python
>            Reporter: Will Jones
>            Priority: Minor
>              Labels: pull-request-available
>          Time Spent: 1h 20m
>  Remaining Estimate: 0h
>
> Most of the functions in Gandiva's Python Expression builder interface current accept None in their arguments, but will segfault once they are used.
> Example:
> {code:python}
> import pyarrow
> import pyarrow.gandiva as gandiva
> builder = gandiva.TreeExprBuilder()
> field = pyarrow.field('whatever', type=pyarrow.date64())
> date_col = builder.make_field(field)
> func = builder.make_function('less_than_or_equal_to', [date_col, None], pyarrow.bool_())
> condition = builder.make_condition(func)
> # Will segfault on this line:
> gandiva.make_filter(pyarrow.schema([field]), condition)
> {code}
> I think this is just a matter of adding {{not None}} to the appropriate function arguments.



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