Performance improvement for SQL queries

@@ -20,6 +20,8 @@ CREATE INDEX IF NOT EXISTS idx_alarm_originator_created_time ON alarm(originator
 
 CREATE INDEX IF NOT EXISTS idx_alarm_tenant_created_time ON alarm(tenant_id, created_time DESC);
 
+CREATE INDEX IF NOT EXISTS idx_alarm_tenant_alarm_type_created_time ON alarm(tenant_id, type, created_time DESC);
+
 CREATE INDEX IF NOT EXISTS idx_event_type_entity_id ON event(tenant_id, event_type, entity_type, entity_id);
 
 CREATE INDEX IF NOT EXISTS idx_relation_to_id ON relation(relation_type_group, to_type, to_id);