Vineet Garg created HIVE-24140:
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Summary: Improve materialized view authorization check
Key: HIVE-24140
URL: https://issues.apache.org/jira/browse/HIVE-24140
Project: Hive
Issue Type: Improvement
Components: Query Planning
Reporter: Vineet Garg
Currently (with HIVE-23454) after mv rewriting authorization check on each mv
is done and rewrite is rejected if check of any mv fails.
This is inefficient as it does authorization check after rewriting. Ideally
this check should be done prior to rewrite (and skip rewrite accordingly).
One approach is to check for all mv for tables involved in the query (This may
cause rewrite to skip even though mv may not be select for rewrite)
Another approach is to cache mv privileges in the registry and refresh them
periodically.
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