[
https://issues.apache.org/jira/browse/ARROW-1561?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Wes McKinney updated ARROW-1561:
--------------------------------
Fix Version/s: (was: 0.12.0)
0.13.0
> [C++] Kernel implementations for "isin" (set containment)
> ---------------------------------------------------------
>
> Key: ARROW-1561
> URL: https://issues.apache.org/jira/browse/ARROW-1561
> Project: Apache Arrow
> Issue Type: New Feature
> Components: C++
> Reporter: Wes McKinney
> Assignee: Uwe L. Korn
> Priority: Major
> Labels: Analytics
> Fix For: 0.13.0
>
>
> isin determines whether each element in the left array is contained in the
> values in the right array. This function must handle the case where the right
> array has nulls (so that null in the left array will return true)
> {code}
> isin(['a', 'b', null], ['a', 'c'])
> returns [true, false, null]
> isin(['a', 'b', null], ['a', 'c', null])
> returns [true, false, true]
> {code}
> May need an option to return false for null instead of null
--
This message was sent by Atlassian JIRA
(v7.6.3#76005)
