'Table that contains logs of all system events.', 'fields' => array( 'dvid' => array( 'type' => 'serial', 'unsigned' => TRUE, 'not null' => TRUE, 'description' => 'The primary identifier.', ), 'view_name' => array( 'type' => 'varchar', 'length' => 128, 'not null' => TRUE, 'default' => '', 'description' => 'Makes the order unique for each view.', ), 'view_display' => array( 'type' => 'varchar', 'length' => 64, 'not null' => TRUE, 'default' => '', 'description' => 'Makes the order unique for each view display.', ), 'args' => array( 'type' => 'varchar', 'length' => 255, 'not null' => FALSE, 'default' => '', 'description' => 'Makes the order unique for a given set of arguments', ), 'entity_id' => array( 'type' => 'int', 'unsigned' => TRUE, 'not null' => TRUE, 'description' => 'Id of the entity that we are sorting (node, user, etc.).', ), 'weight' => array( 'type' => 'int', 'unsigned' => FALSE, 'not null' => TRUE, 'default' => 0, 'description' => 'The order weight.', ), 'parent' => array( 'type' => 'int', 'unsigned' => FALSE, 'not null' => TRUE, 'default' => 0, 'description' => 'The id of the parent.', ), ), 'indexes' => array( 'view' => array('view_name', 'view_display', 'args', 'entity_id'), 'weight' => array('weight'), 'entity_id' => array('entity_id'), ), 'primary key' => array('dvid'), ); return $schema; }