[ 
https://issues.apache.org/jira/browse/HIVE-25643?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17434474#comment-17434474
 ] 

Marton Bod commented on HIVE-25643:
-----------------------------------

Pushed to master. Thanks [~szita] for the review!

> Disable replace cols and change col commands for migrated Iceberg tables
> ------------------------------------------------------------------------
>
>                 Key: HIVE-25643
>                 URL: https://issues.apache.org/jira/browse/HIVE-25643
>             Project: Hive
>          Issue Type: Improvement
>            Reporter: Marton Bod
>            Assignee: Marton Bod
>            Priority: Major
>              Labels: pull-request-available
>          Time Spent: 10m
>  Remaining Estimate: 0h
>
> Since the Iceberg table migration will intentionally not rewrite the data 
> files, the migrated table will end up with data files that do not contain the 
> Iceberg field IDs necessary for safe, reliable schema evolution. For this 
> purpose, we should disallow the REPLACE COLUMNS and CHANGE COLUMN commands 
> for these migrated Iceberg tables. ADD COLUMNS are still permitted.



--
This message was sent by Atlassian Jira
(v8.3.4#803005)

Reply via email to