<p><codeph>gpbackup</codeph> and <codeph>gprestore</codeph> invoke the <codeph>plugin_api_version</codeph> plugin command before a backup or restore operation to determine Backup Storage Plugin API version compatibility.</p>
<p><codeph>gpbackup</codeph> and <codeph>gprestore</codeph> invoke the
<codeph>plugin_api_version</codeph> plugin command before a backup or restore operation to
determine Backup Storage Plugin API version compatibility.</p>
</section>
</section>
<sectionid="section5"><title>Return Value</title>
<sectionid="section5">
<p>The <codeph>plugin_api_version</codeph> command must return the Backup Storage Plugin API version number supported by the storage plugin, "0.1.0".</p>
<title>Return Value</title>
<p>The <codeph>plugin_api_version</codeph> command must return the Backup Storage Plugin API
version number supported by the storage plugin, "0.3.0".</p>