[HIVE-7487] Vectorize GROUP BY on the Reduce-Side (Part 2 – Count Distinct)

• Type: Sub-task
• Status: Resolved
• Priority: Major
• Resolution: Won't Fix
• Assignee: Matt McCline
• Reporter: Matt McCline
• Created: 23/Jul/14 21:29
• Updated: 26/Nov/15 02:40
• Resolved: 26/Nov/15 02:40

Description

Vectorize reduce count distinct aggregation, depending on how we decide to change how the optimizer