Query in the RSQL format, allowing to filter Patch Policy collection. Default filter is empty query - returning all results for the requested page. Fields allowed in the query: id, name, enabled, targetPatchVersion, deploymentMethod, softwareTitleId, softwareTitleConfigurationId, killAppsDelayMinutes, killAppsMessage, isDowngrade, isPatchUnknownVersion, notificationHeader, selfServiceEnforceDeadline, selfServiceDeadline, installButtonText, selfServiceDescription, iconId, reminderFrequency, reminderEnabled. This param can be combined with paging and sorting.