[ARROW-7631] [C++][Gandiva] return zero if there is an overflow while converting a decimal to a lower precision/scale

• Type: Bug
• Status: Resolved
• Priority: Minor
• Resolution: Fixed
• Fix Version/s: 0.17.0
• Component/s: C++ - Gandiva
• Labels: pull-request-available
• External issue URL: https://github.com/apache/arrow/issues/23882
• Assignee: Prudhvi Porandla
• Reporter: Prudhvi Porandla
• Created: 21/Jan/20 11:29
• Updated: 11/Jan/23 07:55
• Resolved: 07/Feb/20 09:29

Description

also add castDecimalNullOnOverflow function : casts a decimal to specified precision and scale, returns null if the cast results in an overflow

Issue Links

• links to: GitHub Pull Request #6239