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