[
https://issues.apache.org/jira/browse/HIVE-19569?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
mahesh kumar behera updated HIVE-19569:
---------------------------------------
Attachment: HIVE-19569.01-branch-3.patch
> alter table db1.t1 rename db2.t2 generates
> MetaStoreEventListener.onDropTable()
> -------------------------------------------------------------------------------
>
> Key: HIVE-19569
> URL: https://issues.apache.org/jira/browse/HIVE-19569
> Project: Hive
> Issue Type: Bug
> Components: Metastore, Standalone Metastore, Transactions
> Affects Versions: 3.0.0
> Reporter: Eugene Koifman
> Assignee: mahesh kumar behera
> Priority: Major
> Labels: pull-request-available
> Fix For: 4.0.0
>
> Attachments: HIVE-19569.01-branch-3.patch, HIVE-19569.01.patch,
> HIVE-19569.02.patch, HIVE-19569.03.patch, HIVE-19569.04.patch
>
>
> When renaming a table within the same DB, this operation causes
> {{MetaStoreEventListener.onAlterTable()}} to fire but when changing DB name
> for a table it causes {{MetaStoreEventListener.onDropTable()}} +
> {{MetaStoreEventListener.onCreateTable()}}.
> The files from original table are moved to new table location.
> This creates confusing semantics since any logic in {{onDropTable()}} doesn't
> know about the larger context, i.e. that there will be a matching
> {{onCreateTable()}}.
> In particular, this causes a problem for Acid tables since files moved from
> old table use WriteIDs that are not meaningful with the context of new table.
> Current implementation is due to replication. This should ideally be changed
> to raise a "not supported" error for tables that are marked for replication.
> cc [~sankarh]
--
This message was sent by Atlassian JIRA
(v7.6.3#76005)
