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https://issues.apache.org/jira/browse/HIVE-27115?focusedWorklogId=848557&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-848557
]
ASF GitHub Bot logged work on HIVE-27115:
-----------------------------------------
Author: ASF GitHub Bot
Created on: 02/Mar/23 07:52
Start Date: 02/Mar/23 07:52
Worklog Time Spent: 10m
Work Description: yigress opened a new pull request, #4093:
URL: https://github.com/apache/hive/pull/4093
### What changes were proposed in this pull request?
Fix the bug in HiveInputFormat when there are multiple dirs with different
TableScanOperators, the column project pushdown fields is gotten from previous
TSOperator.
### Why are the changes needed?
fix a bug, this happens in MR mode.
### Does this PR introduce _any_ user-facing change?
No
### How was this patch tested?
tested locally.
Issue Time Tracking
-------------------
Worklog Id: (was: 848557)
Remaining Estimate: 0h
Time Spent: 10m
> HiveInputFormat column project push down wrong fields (MR)
> ----------------------------------------------------------
>
> Key: HIVE-27115
> URL: https://issues.apache.org/jira/browse/HIVE-27115
> Project: Hive
> Issue Type: Bug
> Components: Hive
> Affects Versions: 3.1.3, 4.0.0-alpha-2
> Reporter: Yi Zhang
> Assignee: Yi Zhang
> Priority: Major
> Time Spent: 10m
> Remaining Estimate: 0h
>
> 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.
>
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