[jira] [Created] (IMPALA-9223) Don't require privileges on unmaterialized columns

["Quanlong Huang (Jira)" <ji...@apache.org>]

Quanlong Huang created IMPALA-9223:
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             Summary: Don't require privileges on unmaterialized columns
                 Key: IMPALA-9223
                 URL: https://issues.apache.org/jira/browse/IMPALA-9223
             Project: IMPALA
          Issue Type: Bug
          Components: Security
            Reporter: Quanlong Huang


Impala requires user privileges on all columns in the query, no matter whether those columns are materialized. This is a different behavior than Hive's.

For instance, for query "{{select id from (select * from customer_tiny) t}}", only the {{id}} column is materialized. Hive only requires SELECT privilege on the {{id}} column. However, Impala requires SELECT privileges on the table or all columns of the table.

We should consider taking the same behavior of Hive.



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