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https://issues.apache.org/jira/browse/HIVE-18113?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16261282#comment-16261282
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Ashutosh Chauhan commented on HIVE-18113:
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I am not sure what you are proposing. From patch it seems like you are removing
{{cascade}} support in alter statement, though description and title of jira
convey differently.
In any case, capability of table and partition having different schema is one
of key features of Hive which we don't want to remove unless there is a strong
justification for it.
> Remove mixed partitions/table schema support
> --------------------------------------------
>
> Key: HIVE-18113
> URL: https://issues.apache.org/jira/browse/HIVE-18113
> Project: Hive
> Issue Type: Sub-task
> Reporter: Zoltan Haindrich
> Assignee: Zoltan Haindrich
> Attachments: HIVE-18113.01.patch
>
>
> Currently it is possible to have misaligned table/partition schemas;
> [see here for example|
> https://github.com/apache/hive/blob/a5c2e15c7cc125d8cda2ee3a8ed64c116ff6b755/ql/src/test/queries/clientpositive/schema_evol_text_vec_part.q#L156]
> result of [this insert
> statement|https://github.com/apache/hive/blob/a5c2e15c7cc125d8cda2ee3a8ed64c116ff6b755/ql/src/test/queries/clientpositive/schema_evol_text_vec_part.q#L162]
> are these [null
> values|https://github.com/apache/hive/blob/a5c2e15c7cc125d8cda2ee3a8ed64c116ff6b755/ql/src/test/results/clientpositive/llap/schema_evol_text_vec_part.q.out#L660]
> This mixed partition setup can cause the stats aggregation to become quite
> confusing...I think it would be better to remove this thing....there is a
> {{CASCADE}} flag already; which changes the schema all over the
> table/partitions/etc.
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