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

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

     [ https://issues.apache.org/jira/browse/IMPALA-9223?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Quanlong Huang updated IMPALA-9223:
-----------------------------------

Removed from column masking epic since column masking doesn't need this after IMPALA-9661 is resolved.

> 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
>            Priority: Major
>
> 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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