[DRILL-7886] Add new ValueHolder to Apache Drill

• Type: Improvement
• Status: Closed
• Priority: Major
• Resolution: Incomplete
• Affects Version/s: 1.18.0
• Fix Version/s: 1.18.0
• Component/s: Functions - Drill
• Assignee: Unassigned
• Reporter: ye tian
• Created: 25/Mar/21 08:19
• Updated: 25/Mar/21 11:31
• Resolved: 25/Mar/21 11:23

Description

Hi I'm developing Apache Drill UDFs. I need a self-defined class in the workspace of my aggregate function. But UDAF's workspace does not support variables other than ValueHolders. So my question is: is it able to write a ValueHolders for self-defined classes? Any instructions are also welcome.