[IMPALA-8851] Drop table if exists throws authorization exception when table does not exist

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Implemented
• Fix Version/s: Impala 3.4.0
• Epic Color: ghx-label-3
• Assignee: Vihang Karajgaonkar
• Reporter: Vihang Karajgaonkar
• Created: 09/Aug/19 01:48
• Updated: 04/Sep/19 15:34
• Resolved: 02/Sep/19 14:10

Description

When authorization is enabled, a drop table if exists <tablename> on a non-existing table throws an authorization exception. In such a case if the user has required permissions to the query the tables on the database, this is unnecessary and the SQL should succeed saying the table does not exists instead of erroring out.

Issue Links

• breaks: IMPALA-8918 Drop-Table-If-Exists can't drop unloaded table