[ https://issues.apache.org/jira/browse/ARROW-1561?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Micah Kornfield reassigned ARROW-1561: -------------------------------------- Assignee: Preeti Suman > [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: Preeti Suman > Priority: Major > Labels: Analytics, pull-request-available > Fix For: 0.15.0 > > Time Spent: 21h 20m > Remaining Estimate: 0h > > 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 (v7.6.14#76016)