[SPARK-11438] Allow users to define nondeterministic UDFs

• Type: New Feature
• Status: Resolved
• Priority: Major
• Resolution: Won't Fix
• Component/s: SQL
• Assignee: Unassigned
• Reporter: Yin Huai
• Created: 01/Nov/15 00:02
• Updated: 04/Jan/16 21:16
• Resolved: 06/Nov/15 02:11

Description

Right now, all UDFs are deterministic. It will be great if we allow users to define nondeterministic UDFs.

Issue Links

• links to: [Github] Pull Request #9393 (yhuai)

Sub-Tasks

• Initial implementation of allowing users to define UDFs that will not be evaluated more than once: Resolved
• Figure out a good name for the public API: Closed