[ARROW-13217] [C++][Gandiva] Correct convert_replace function for invalid chars on string beginning

• Type: Bug
• Status: Resolved
• Priority: Minor
• Resolution: Fixed
• Fix Version/s: 5.0.0
• Component/s: C++ - Gandiva
• Labels: pull-request-available
• External issue URL: https://github.com/apache/arrow/issues/28905
• Assignee: João Pedro Antunes Ferreira
• Reporter: João Pedro Antunes Ferreira
• Created: 30/Jun/21 00:37
• Updated: 11/Jan/23 08:31
• Resolved: 15/Jul/21 16:10

Description

The CONVERT_REPLACE Gandiva function is not working properly for invalid chars on the beginning of the string (e.g. "\xa0\xa1-valid" should be  "-valid" considering an empty replacement char. But it is not replacing correctly).

Issue Links

• links to: GitHub Pull Request #10625