04 Administrator GuideStarting or Stopping openGaussRoutine MaintenanceChecking Time ConsistencyChecking the Number of Application ConnectionsRoutinely Maintaining TablesRoutinely Recreating an IndexData Security Maintenance SuggestionsSlow SQL DiagnosisBackup and RestorationOverviewPhysical Backup and Restorationgs_basebackupPITRgs_probackupLogical Backup and Restorationgs_dumpgs_dumpallgs_restoreFlashback RestorationFlashback QueryFlashback TableDROP/TRUNCATE FlashbackRisky OperationsLog Reference