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From "Dimitris Tsirogiannis (JIRA)" <j...@apache.org>
Subject [jira] [Created] (IMPALA-5259) Add REFRESH FUNCTIONS <db> statement
Date Fri, 28 Apr 2017 05:58:04 GMT
Dimitris Tsirogiannis created IMPALA-5259:
---------------------------------------------

             Summary: Add REFRESH FUNCTIONS <db> statement
                 Key: IMPALA-5259
                 URL: https://issues.apache.org/jira/browse/IMPALA-5259
             Project: IMPALA
          Issue Type: New Feature
          Components: Catalog
            Reporter: Dimitris Tsirogiannis
            Assignee: Taras Bobrovytsky


Currently, Impala relies on INVALIDATE METADATA to load externally added UDFs from HMS. However,
INVALIDATE METADATA affects all the databases/tables of an Impala cluster. Instead, we should
add a REFRESH FUNCTIONS <db> statement to reload the functions of a database from HMS.
This statement should return the list of db functions to the issuing Impalad in order to update
its local catalog cache.



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