[jira] [Commented] (HIVE-15944) The order of cols is error in ColumnPrunerReduceSinkProc because of sort operator

["Ashutosh Chauhan (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/HIVE-15944?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15960256#comment-15960256 ] 

Ashutosh Chauhan commented on HIVE-15944:
-----------------------------------------

Likely column order is changed in ColumnPruner. Better approach here is to generate columns in correct order in Column Pruner while visiting Limit Operator.

> The order of cols is error in ColumnPrunerReduceSinkProc because of sort operator
> ---------------------------------------------------------------------------------
>
>                 Key: HIVE-15944
>                 URL: https://issues.apache.org/jira/browse/HIVE-15944
>             Project: Hive
>          Issue Type: Bug
>          Components: Query Processor
>    Affects Versions: 1.1.0, 2.2.0
>            Reporter: wan kun
>            Assignee: wan kun
>             Fix For: 2.2.0
>
>         Attachments: HIVE-15944.1.patch, HIVE-15944.2-branch-1.1.1.path.erroroutput, HIVE-15944.3.patch, HIVE-15944.4-branch-1.1.1.patch, HIVE-15944.4.patch, HIVE-15944.5.patch, HIVE-15944.6.patch, HIVE-15944.7.patch, HIVE-15944.8.patch, HIVE-15944-branch-1.1.patch, HIVE-15944.patch, STAGE_DEPENDENCIES
>
>   Original Estimate: 168h
>  Remaining Estimate: 168h
>
> If one sql have two job.
> job 1:The order of cols is updated in ColumnPrunerReduceSinkProc because of sort operator.
> job 2 will read error in map operation because the cols order is old.



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