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https://issues.apache.org/jira/browse/HIVE-23730?focusedWorklogId=448474&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-448474
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ASF GitHub Bot logged work on HIVE-23730:
-----------------------------------------
Author: ASF GitHub Bot
Created on: 19/Jun/20 13:26
Start Date: 19/Jun/20 13:26
Worklog Time Spent: 10m
Work Description: pgaref opened a new pull request #1152:
URL: https://github.com/apache/hive/pull/1152
TezCompiler tracking the original TS key columnName used for MJ probedecode
Change-Id: Ia1f42f36bb6ea7108628d99f306d3c74398dca6b
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Issue Time Tracking
-------------------
Worklog Id: (was: 448474)
Remaining Estimate: 0h
Time Spent: 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
> Time Spent: 10m
> Remaining Estimate: 0h
>
> Compiler needs to track the original TS key columnName used for MJ
> probedecode.
> Even thought 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. The tracking can be done through the (ColumnExprMap)
> output column name to input expression Map of the operators.
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