[
https://issues.apache.org/jira/browse/HIVE-8839?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Chaoyu Tang updated HIVE-8839:
------------------------------
Attachment: HIVE-8839.2.patch
The test failure should not be related to this patch since it could not be
reproduced in my local machine even after rebasing to most recent code.
Reattach patch to trigger the test to see if it is reproducible in build env.
> Support "alter table .. add/replace columns cascade"
> ----------------------------------------------------
>
> Key: HIVE-8839
> URL: https://issues.apache.org/jira/browse/HIVE-8839
> Project: Hive
> Issue Type: Improvement
> Components: SQL
> Environment:
> Reporter: Chaoyu Tang
> Assignee: Chaoyu Tang
> Labels: TODOC15
> Fix For: 0.15.0
>
> Attachments: HIVE-8839.1.patch, HIVE-8839.2.patch, HIVE-8839.2.patch,
> HIVE-8839.patch
>
>
> We often run into some issues like HIVE-6131which is due to inconsistent
> column descriptors between table and partitions after alter table.
> HIVE-8441/HIVE-7971 provided the flexibility to alter table at partition
> level. But most cases we have need change the table and partitions at same
> time. In addition, "alter table" is usually required prior to "alter table
> partition .." since querying table partition data is also through table.
> Instead of do that in two steps, here we provide a convenient ddl like "alter
> table ... cascade" to cascade table changes to partitions as well. The
> changes are only limited and applicable to add/replace columns and change
> column name, datatype, position and comment.
--
This message was sent by Atlassian JIRA
(v6.3.4#6332)
