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https://issues.apache.org/jira/browse/HIVE-26882?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Peter Vary resolved HIVE-26882.
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    Fix Version/s: 4.0.0
       Resolution: Fixed

Pushed to master

> Allow transactional check of Table parameter before altering the Table
> ----------------------------------------------------------------------
>
>                 Key: HIVE-26882
>                 URL: https://issues.apache.org/jira/browse/HIVE-26882
>             Project: Hive
>          Issue Type: Improvement
>          Components: Standalone Metastore
>            Reporter: Peter Vary
>            Assignee: Peter Vary
>            Priority: Major
>              Labels: pull-request-available
>             Fix For: 4.0.0
>
>          Time Spent: 3h 20m
>  Remaining Estimate: 0h
>
> We should add the possibility to transactionally check if a Table parameter 
> is changed before altering the table in the HMS.
> This would provide an alternative, less error-prone and faster way to commit 
> an Iceberg table, as the Iceberg table currently needs to:
> - Create an exclusive lock
> - Get the table metadata to check if the current snapshot is not changed
> - Update the table metadata
> - Release the lock
> After the change these 4 HMS calls could be substituted with a single alter 
> table call.
> Also we could avoid cases where the locks are left hanging by failed processes



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