[ARROW-10330] [Rust][Datafusion] Implement nullif() function for DataFusion

• Type: New Feature
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 3.0.0
• Component/s: Rust - DataFusion
• Labels: pull-request-available
• External issue URL: https://github.com/apache/arrow/issues/26319
• Assignee: Evan Chan
• Reporter: Evan Chan
• Created: 17/Oct/20 00:39
• Updated: 11/Jan/23 08:12
• Resolved: 27/Nov/20 20:51

Description

Here is the common definition of NULLIF() function:

https://www.w3schools.com/sql/func_sqlserver_nullif.asp

 

Among other uses, it is used to protect denominators from divide by 0 errors.

We have implemented it at UrbanLogiq and would like to contribute this back.

Issue Links

• links to: GitHub Pull Request #8688