[ARROW-14011] [C++][Gandiva] Add elt hive function to gandiva

• Type: New Feature
• Status: Closed
• Priority: Minor
• Resolution: Fixed
• Fix Version/s: 7.0.0
• Component/s: C++ - Gandiva
• Labels: pull-request-available
• External issue URL: https://github.com/apache/arrow/issues/29610
• Assignee: Unassigned
• Reporter: Augusto Alves Silva
• Created: 15/Sep/21 23:34
• Updated: 11/Jan/23 08:36
• Resolved: 23/Nov/21 08:37

Description

Return string at index number. For example elt(2,'hello','world') returns 'world'. Returns NULL if N is less than 1 or greater than the number of arguments.

Issue Links

• links to: GitHub Pull Request #11166