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From "Jesus Camacho Rodriguez (Jira)" <j...@apache.org>
Subject [jira] [Resolved] (HIVE-23730) Compiler support tracking TS keyColName for Probe MapJoin
Date Mon, 20 Jul 2020 02:53:00 GMT

     [ https://issues.apache.org/jira/browse/HIVE-23730?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Jesus Camacho Rodriguez resolved HIVE-23730.
--------------------------------------------
    Fix Version/s: 4.0.0
       Resolution: Fixed

Pushed to master, thanks [~pgaref]!

> 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
>             Fix For: 4.0.0
>
>          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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