[ARROW-6134] [C++][Gandiva] Add concat function in Gandiva

• Type: Task
• Status: Resolved
• Priority: Minor
• Resolution: Fixed
• Fix Version/s: 0.15.0
• Component/s: C++ - Gandiva
• Labels: pull-request-available
• External issue URL: https://github.com/apache/arrow/issues/22528
• Assignee: Prudhvi Porandla
• Reporter: Prudhvi Porandla
• Created: 05/Aug/19 09:53
• Updated: 11/Jan/23 07:45
• Resolved: 08/Aug/19 10:15

Description

• remove concat alias for concatOperator
• add concat(utf8, utf8) function. The difference between concat and concatOperator is in null input handling. concatOperator returns null if one of the inputs is null; concat treats null input as empty string

Issue Links

• links to: GitHub Pull Request #5008