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From "ASF GitHub Bot (Jira)" <>
Subject [jira] [Work logged] (HIVE-23730) Compiler support tracking TS keyColName for Probe MapJoin
Date Mon, 20 Jul 2020 02:53:00 GMT


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:


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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:
>             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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