[PHOENIX-4639] Udf's don't run execute method when using null as a parameter.

• Type: Bug
• Status: Open
• Priority: Major
• Resolution: Unresolved
• Affects Version/s: 4.13.2-cdh

Environment

Centos 7  using Cloudera

• Assignee: Unassigned
• Reporter: Clive Stellings
• Created: 05/Mar/18 13:02
• Updated: 07/Mar/18 17:05

Description

When attempting to use a UDF the code for evaluate never runs if the parameter for the UDF is null.  I wrote a function called isnull that is attempting to emulate the same function as in Mysql but when I enter null e.g. isnull(null) it returns with an empty value and when I check if the evaluate method actually runs, it never enters the method.