[IMPALA-11429] Newly created Iceberg tables are owned by the user of the CatalogD process

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Fix Version/s: Impala 4.2.0
• Component/s: Catalog
• Labels: impala-iceberg
• Epic Color: ghx-label-5
• Assignee: Gabor Kaszab
• Reporter: Zoltán Borók-Nagy
• Created: 13/Jul/22 17:27
• Updated: 16/Nov/23 23:34
• Resolved: 05/Dec/22 10:34

Description

Repro:

> impala-shell.sh -u johndoe
impala-shell> create table ice_t (i int) stored as iceberg;
impala-shell> describe formatted ice_t;
...
| Owner:                       | impala                                     |
...

The owner should be the user executing the query.

Unfortunately Iceberg doesn't allow us setting the owner of the table. It uses the system-wide property "user.name" to set the owner:
https://github.com/apache/iceberg/blob/51a9702367e22aff635ae05f2a313a19c3ba2fb8/hive-metastore/src/main/java/org/apache/iceberg/hive/HiveTableOperations.java#L347

We might need Iceberg-side modifications as well to specify the owner. Alternatively we could add an exter alter_table() RPC to change the owner.