diff --git a/fe/fe-core/src/main/java/org/apache/doris/catalog/Column.java b/fe/fe-core/src/main/java/org/apache/doris/catalog/Column.java
index 0aca7e4e28e31a..86cbf203a53fc9 100644
--- a/fe/fe-core/src/main/java/org/apache/doris/catalog/Column.java
+++ b/fe/fe-core/src/main/java/org/apache/doris/catalog/Column.java
@@ -60,6 +60,7 @@
  */
 public class Column implements GsonPostProcessable {
     private static final Logger LOG = LogManager.getLogger(Column.class);
+    // NOTE: you should name hidden column start with '__DORIS_' !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
     public static final String DELETE_SIGN = "__DORIS_DELETE_SIGN__";
     public static final String WHERE_SIGN = "__DORIS_WHERE_SIGN__";
     public static final String SEQUENCE_COL = "__DORIS_SEQUENCE_COL__";
@@ -67,6 +68,8 @@ public class Column implements GsonPostProcessable {
     public static final String ROW_STORE_COL = "__DORIS_ROW_STORE_COL__";
     public static final String DYNAMIC_COLUMN_NAME = "__DORIS_DYNAMIC_COL__";
     public static final String VERSION_COL = "__DORIS_VERSION_COL__";
+    // NOTE: you should name hidden column start with '__DORIS_' !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
+
     private static final String COLUMN_ARRAY_CHILDREN = "item";
     private static final String COLUMN_STRUCT_CHILDREN = "field";
     private static final String COLUMN_AGG_ARGUMENT_CHILDREN = "argument";