[HIVE-7537] Output vectorized GROUP BY with only primitive aggregate fields as columns so downstream operators will be vectorized

• Type: Sub-task
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Assignee: Matt McCline
• Reporter: Matt McCline
• Created: 28/Jul/14 20:57
• Updated: 11/Sep/14 06:15
• Resolved: 10/Sep/14 23:38

Description

When under Tez engine, see if the VectorGroupByOperator aggregrates are all primitive (e.g. sum) and batch the output rows into a VectorizedRowBatch. And, vectorize downstream operators.

Issue Links

• relates to: HIVE-7405 Vectorize GROUP BY on the Reduce-Side (Part 1 – Basic)