[HIVE-14861] Support precedence for set operator using parentheses

• Type: Sub-task
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 2.1.0
• Fix Version/s: 2.2.0
• Labels: TODOC2.2
• Assignee: Pengcheng Xiong
• Reporter: Pengcheng Xiong
• Created: 29/Sep/16 21:39
• Updated: 26/Jul/17 03:30
• Resolved: 08/Oct/16 03:34

Description

We should support precedence for set operator by using parentheses. For example

select * from src union all (select * from src union select * from src);

Issue Links

• links to: RB