[jira] [Work logged] (HIVE-23806) Avoid clearing column stat states in all partition in case schema is extended

["ASF GitHub Bot (Jira)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/HIVE-23806?focusedWorklogId=455257&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-455257 ]

ASF GitHub Bot logged work on HIVE-23806:
-----------------------------------------

                Author: ASF GitHub Bot
            Created on: 07/Jul/20 07:03
            Start Date: 07/Jul/20 07:03
    Worklog Time Spent: 10m 
      Work Description: kgyrtkirk opened a new pull request #1215:
URL: https://github.com/apache/hive/pull/1215


   


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Issue Time Tracking
-------------------

            Worklog Id:     (was: 455257)
    Remaining Estimate: 0h
            Time Spent: 10m

> Avoid clearing column stat states in all partition in case schema is extended
> -----------------------------------------------------------------------------
>
>                 Key: HIVE-23806
>                 URL: https://issues.apache.org/jira/browse/HIVE-23806
>             Project: Hive
>          Issue Type: Improvement
>            Reporter: Zoltan Haindrich
>            Assignee: Zoltan Haindrich
>            Priority: Major
>          Time Spent: 10m
>  Remaining Estimate: 0h
>
> in case there are many partitions; adding a new column without cascade may take a while - because we want to make sure in schema evolution cases that we don't reuse stats later-on by mistake...
> however this is not neccessary in case the schema is extended



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