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| <!DOCTYPE concept PUBLIC "-//OASIS//DTD DITA Concept//EN" "concept.dtd"> |
| <concept id="refresh_authorization"> |
| |
| <title>REFRESH AUTHORIZATION Statement</title> |
| |
| <titlealts audience="PDF"> |
| |
| <navtitle>REFRESH AUTHORIZATION</navtitle> |
| |
| </titlealts> |
| |
| <prolog> |
| <metadata> |
| <data name="Category" value="Impala"/> |
| <data name="Category" value="SQL"/> |
| <data name="Category" value="DDL"/> |
| <data name="Category" value="Security"/> |
| </metadata> |
| </prolog> |
| |
| <conbody> |
| |
| <p> |
| The <codeph>REFRESH AUTHORIZATION</codeph> statement explicitly refreshes authorization |
| data, including privileges and principals. When there is an external update to |
| authorization metadata, use this statement to force Impala to refresh its authorization |
| data without having to wait for the Ranger polling or run <codeph>INVALIDATE |
| METADATA</codeph>. |
| </p> |
| |
| <p> |
| Once issued, the <codeph>REFRESH AUTHORIZATION</codeph> statement cannot be cancelled. |
| </p> |
| |
| <p> |
| See <xref href="impala_authorization.xml#authorization">Impala Authorization</xref> for |
| information on enabling and using authorization in Impala. |
| </p> |
| |
| <p> |
| <b>Syntax:</b> |
| </p> |
| |
| <codeblock>REFRESH AUTHORIZATION</codeblock> |
| |
| <p> |
| <b>Usage notes:</b> If authorization is not enabled, Impala returns an error. |
| </p> |
| |
| <p> |
| <b>Added in:</b> Impala 3.2 |
| </p> |
| |
| </conbody> |
| |
| </concept> |