[jira] [Work logged] (HIVE-26788) Update stats of table/partition using noscan operation when stats autogather is enabled

Tue, 06 Dec 2022 23:50:50 -0800 


     [ 
https://issues.apache.org/jira/browse/HIVE-26788?focusedWorklogId=831660&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-831660
 ]

ASF GitHub Bot logged work on HIVE-26788:
-----------------------------------------

                Author: ASF GitHub Bot
            Created on: 07/Dec/22 07:49
            Start Date: 07/Dec/22 07:49
    Worklog Time Spent: 10m 
      Work Description: sonarcloud[bot] commented on PR #3812:
URL: https://github.com/apache/hive/pull/3812#issuecomment-1340535075

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

    Worklog Id:     (was: 831660)
    Time Spent: 2h  (was: 1h 50m)

> Update stats of table/partition using noscan operation when stats autogather 
> is enabled
> ---------------------------------------------------------------------------------------
>
>                 Key: HIVE-26788
>                 URL: https://issues.apache.org/jira/browse/HIVE-26788
>             Project: Hive
>          Issue Type: Improvement
>            Reporter: Sourabh Badhya
>            Assignee: Sourabh Badhya
>            Priority: Major
>              Labels: pull-request-available
>          Time Spent: 2h
>  Remaining Estimate: 0h
>
> Currently, statistics are always updated for major compaction and never 
> updated for minor compaction since minor compaction performs little updates 
> on the statistics (such as number of files in table/partition & total size of 
> the table/partition). It is better to utilize NOSCAN operation  for both 
> these compaction since NOSCAN operations performs faster update of statistics 
> and updates the relevant fields such as number of files & total sizes of the 
> table/partitions if stats autogather is enabled. If autostats gather is 
> disabled then go for full update of statistics.



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