[HIVE-6611] Joining multiple union all outputs fails on Tez

• Type: Bug
• Status: Resolved
• Priority: Critical
• Resolution: Fixed
• Fix Version/s: 0.13.0
• Assignee: Gunther Hagleitner
• Reporter: Gunther Hagleitner
• Created: 11/Mar/14 00:23
• Updated: 12/Mar/14 21:13
• Resolved: 12/Mar/14 21:13

Description

Queries like:

with u as (select * from src union all select * from src)
select * from u join u;

will fail on Tez because only one union flows into the join reduce phase.