Modify a note about rebuilding index (#1506)

docs-2.0/3.ngql-guide/14.native-index-statements/4.rebuild-native-index.md

@@ -2,9 +2,8 @@
 
 !!! danger
 
-    If data is updated or inserted before the creation of the index, you must rebuild the indexes **manually** to make sure that the indexes contain the previously added data. Otherwise, you cannot use `LOOKUP` and `MATCH` to query the data based on the index. If the index is created before any data insertion, there is no need to rebuild the index.
-
-    During the rebuilding, all queries skip the index and perform sequential scans. This means that the return results can be different because not all the data is indexed during rebuilding.
+    - If data is updated or inserted before the creation of the index, you must rebuild the indexes **manually** to make sure that the indexes contain the previously added data. Otherwise, you cannot use `LOOKUP` and `MATCH` to query the data based on the index. If the index is created before any data insertion, there is no need to rebuild the index.
+    - When the rebuild of an index is incomplete, queries that rely on the index can use only part of the index and therefore cannot obtain accurate results.
 
 You can use `REBUILD INDEX` to rebuild the created tag or edge type index. For details on how to create an index, see [CREATE INDEX](1.create-native-index.md).