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Posted to jira@arrow.apache.org by "ASF GitHub Bot (Jira)" <ji...@apache.org> on 2021/06/04 14:55:00 UTC
[jira] [Updated] (ARROW-12969) [C++] match_substring doesn't match
empty needle to empty haystack
[ https://issues.apache.org/jira/browse/ARROW-12969?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
ASF GitHub Bot updated ARROW-12969:
-----------------------------------
Labels: pull-request-available (was: )
> [C++] match_substring doesn't match empty needle to empty haystack
> ------------------------------------------------------------------
>
> Key: ARROW-12969
> URL: https://issues.apache.org/jira/browse/ARROW-12969
> Project: Apache Arrow
> Issue Type: Bug
> Components: C++
> Affects Versions: 4.0.0, 4.0.1
> Reporter: David Li
> Assignee: David Li
> Priority: Major
> Labels: pull-request-available
> Fix For: 5.0.0
>
> Time Spent: 10m
> Remaining Estimate: 0h
>
> {noformat}
> >>> import pyarrow as pa, pyarrow.compute as pc
> >>> pa.__version__
> '4.0.0'
> >>> pc.match_substring(["", "a"], "")
> <pyarrow.lib.BooleanArray object at 0x7fd8a77888e0>
> [
> false,
> true
> ]
> >>> "" in ""
> True {noformat}
> Also confirmed with PyArrow 4.0.1.
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