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Posted to issues@hive.apache.org by "ASF GitHub Bot (Jira)" <ji...@apache.org> on 2020/07/20 02:53:00 UTC
[jira] [Work logged] (HIVE-23730) Compiler support tracking TS
keyColName for Probe MapJoin
[ https://issues.apache.org/jira/browse/HIVE-23730?focusedWorklogId=460867&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-460867 ]
ASF GitHub Bot logged work on HIVE-23730:
-----------------------------------------
Author: ASF GitHub Bot
Created on: 20/Jul/20 02:52
Start Date: 20/Jul/20 02:52
Worklog Time Spent: 10m
Work Description: jcamachor merged pull request #1152:
URL: https://github.com/apache/hive/pull/1152
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Issue Time Tracking
-------------------
Worklog Id: (was: 460867)
Time Spent: 1h 20m (was: 1h 10m)
> Compiler support tracking TS keyColName for Probe MapJoin
> ---------------------------------------------------------
>
> Key: HIVE-23730
> URL: https://issues.apache.org/jira/browse/HIVE-23730
> Project: Hive
> Issue Type: Sub-task
> Reporter: Panagiotis Garefalakis
> Assignee: Panagiotis Garefalakis
> Priority: Major
> Labels: pull-request-available
> Time Spent: 1h 20m
> Remaining Estimate: 0h
>
> Compiler needs to track the original TS key columnName used for MJ probedecode.
> Even though we know the MJ keyCol at compile time, this could be generated by previous (parent) operators thus we dont always know the original TS column it maps to.
> To find the original columnMapping, we need to track the MJ keyCol through the operator pipeline. Tracking can be done through the parent operator ColumnExprMap and RowSchema.
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