[ https://issues.apache.org/jira/browse/ARROW-6212?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Micah Kornfield resolved ARROW-6212. ------------------------------------ Resolution: Fixed Fix Version/s: 0.15.0 Issue resolved by pull request 5066 [https://github.com/apache/arrow/pull/5066] > [Java] Support vector rank operation > ------------------------------------ > > Key: ARROW-6212 > URL: https://issues.apache.org/jira/browse/ARROW-6212 > Project: Apache Arrow > Issue Type: New Feature > Components: Java > Reporter: Liya Fan > Assignee: Liya Fan > Priority: Major > Labels: pull-request-available > Fix For: 0.15.0 > > Time Spent: 2h 10m > Remaining Estimate: 0h > > Given an unsorted vector, we want to get the index of the ith smallest > element in the vector. This function is supported by the rank operation. > We provide an implementation that gets the index with the desired rank, > without sorting the vector (the vector is left intact), and the > implementation takes O( n ) time, where n is the vector length. -- This message was sent by Atlassian JIRA (v7.6.14#76016)