[HIVE-27115] HiveInputFormat column project push down wrong fields (MR)

• Type: Bug
• Status: Open
• Priority: Major
• Resolution: Unresolved
• Affects Version/s: 3.1.3, 4.0.0-alpha-2
• Component/s: Hive
• Labels: pull-request-available
• Assignee: Yi Zhang
• Reporter: Yi Zhang
• Created: 01/Mar/23 07:25
• Updated: 30/Mar/23 17:04

Description

For query such as 

select * from (

select r_name from r

union all

select t_name from t

) unioned

 

in MR execution, when column project push down for splits, t_name gets pushed down to table r. 

 

Issue Links

• links to: GitHub Pull Request #4093