| <?xml version="1.0" encoding="UTF-8"?> |
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| --> |
| <!DOCTYPE concept PUBLIC "-//OASIS//DTD DITA Concept//EN" "concept.dtd"> |
| <concept rev="1.4.0" id="drop_role"> |
| |
| <title>DROP ROLE Statement (<keyword keyref="impala20"/> or higher only)</title> |
| <titlealts audience="PDF"><navtitle>DROP ROLE</navtitle></titlealts> |
| <prolog> |
| <metadata> |
| <data name="Category" value="Impala"/> |
| <data name="Category" value="DDL"/> |
| <data name="Category" value="SQL"/> |
| <data name="Category" value="Sentry"/> |
| <data name="Category" value="Security"/> |
| <data name="Category" value="Roles"/> |
| <data name="Category" value="Administrators"/> |
| <data name="Category" value="Developers"/> |
| <data name="Category" value="Data Analysts"/> |
| <!-- Consider whether to go deeper into categories like Security for the Sentry-related statements. --> |
| </metadata> |
| </prolog> |
| |
| <conbody> |
| |
| <p> |
| <indexterm audience="hidden">DROP ROLE statement</indexterm> |
| <!-- Copied from Sentry docs. Turn into conref. I did some rewording for clarity. --> |
| The <codeph>DROP ROLE</codeph> statement removes a role from the metastore database. Once dropped, the role |
| is revoked for all users to whom it was previously assigned, and all privileges granted to that role are |
| revoked. Queries that are already executing are not affected. Impala verifies the role information |
| approximately every 60 seconds, so the effects of <codeph>DROP ROLE</codeph> might not take effect for new |
| Impala queries for a brief period. |
| </p> |
| |
| <p conref="../shared/impala_common.xml#common/syntax_blurb"/> |
| |
| <codeblock>DROP ROLE <varname>role_name</varname> |
| </codeblock> |
| |
| <p conref="../shared/impala_common.xml#common/privileges_blurb"/> |
| |
| <p> |
| Only administrative users (initially, a predefined set of users specified in the Sentry service configuration |
| file) can use this statement. |
| </p> |
| |
| <p conref="../shared/impala_common.xml#common/compatibility_blurb"/> |
| |
| <p> |
| Impala makes use of any roles and privileges specified by the <codeph>GRANT</codeph> and |
| <codeph>REVOKE</codeph> statements in Hive, and Hive makes use of any roles and privileges specified by the |
| <codeph>GRANT</codeph> and <codeph>REVOKE</codeph> statements in Impala. The Impala <codeph>GRANT</codeph> |
| and <codeph>REVOKE</codeph> statements for privileges do not require the <codeph>ROLE</codeph> keyword to be |
| repeated before each role name, unlike the equivalent Hive statements. |
| </p> |
| |
| <p conref="../shared/impala_common.xml#common/related_info"/> |
| |
| <p> |
| <xref href="impala_authorization.xml#authorization"/>, <xref href="impala_grant.xml#grant"/> |
| <xref href="impala_revoke.xml#revoke"/>, <xref href="impala_create_role.xml#create_role"/>, |
| <xref href="impala_show.xml#show"/> |
| </p> |
| |
| <!-- To do: nail down the new SHOW syntax, e.g. SHOW ROLES, SHOW CURRENT ROLES, SHOW GROUPS. --> |
| |
| <p conref="../shared/impala_common.xml#common/cancel_blurb_no"/> |
| |
| <p conref="../shared/impala_common.xml#common/permissions_blurb_no"/> |
| |
| </conbody> |
| </concept> |