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https://issues.apache.org/jira/browse/HIVE-25894?focusedWorklogId=734023&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-734023
]
ASF GitHub Bot logged work on HIVE-25894:
-----------------------------------------
Author: ASF GitHub Bot
Created on: 28/Feb/22 17:28
Start Date: 28/Feb/22 17:28
Worklog Time Spent: 10m
Work Description: pvary opened a new pull request #3061:
URL: https://github.com/apache/hive/pull/3061
### What changes were proposed in this pull request?
During Iceberg table migration of partitioned tables we should drop the
partition objects from the HMS.
### Why are the changes needed?
So we have a clean HMS metastore db
### Does this PR introduce _any_ user-facing change?
No
### How was this patch tested?
The existing unit test are checking the migration path
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Issue Time Tracking
-------------------
Worklog Id: (was: 734023)
Remaining Estimate: 0h
Time Spent: 10m
> Table migration to Iceberg doesn't remove HMS partitions
> --------------------------------------------------------
>
> Key: HIVE-25894
> URL: https://issues.apache.org/jira/browse/HIVE-25894
> Project: Hive
> Issue Type: Bug
> Reporter: Zoltán Borók-Nagy
> Assignee: Peter Vary
> Priority: Major
> Time Spent: 10m
> Remaining Estimate: 0h
>
> Repro:
> {code:java}
> create table ice_part_migrate (i int) partitioned by (p int) stored as
> parquet;
> insert into ice_part_migrate partition(p=1) values (1), (11), (111);
> insert into ice_part_migrate partition(p=2) values (2), (22), (222);
> ALTER TABLE ice_part_migrate SET TBLPROPERTIES
> ('storage_handler'='org.apache.iceberg.mr.hive.HiveIcebergStorageHandler');
> {code}
> Then looking at the HMS database:
> {code:java}
> => select "PART_NAME" from "PARTITIONS" p, "TBLS" t where
> t."TBL_ID"=p."TBL_ID" and t."TBL_NAME"='ice_part_migrate';
> PART_NAME
> -----------
> p=1
> p=2
> {code}
> This is weird because Iceberg tables are supposed to be unpartitioned. It
> also breaks some precondition checks in Impala. Is there a particular reason
> to keep the partitions in HMS?
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