placeholder for check table

src/objit/include/objit/common/ob_item_type.h

@@ -2472,6 +2472,7 @@ typedef enum ObItemType
   T_ALTER_LOGFILE_GROUP,
   T_DROP_LOGFILE_GROUP,
   T_SET_UNION_ALL,
+  T_SHOW_CHECK_TABLE,
 
   T_MAX //Attention: add a new type before T_MAX
 } ObItemType;