diff --git a/docs-2.0/nebula-exchange/use-exchange/ex-ug-import-from-clickhouse.md b/docs-2.0/nebula-exchange/use-exchange/ex-ug-import-from-clickhouse.md
index 6bdb274e2b6..2a54e20639d 100644
--- a/docs-2.0/nebula-exchange/use-exchange/ex-ug-import-from-clickhouse.md
+++ b/docs-2.0/nebula-exchange/use-exchange/ex-ug-import-from-clickhouse.md
@@ -242,6 +242,9 @@
         field:dst_player
       }
 
+      # 指定一个列作为 rank 的源（可选）。
+      #ranking: rank
+
       # 单批次写入 Nebula Graph 的数据条数。
       batch: 256
 
@@ -269,6 +272,10 @@
       target: {
         field:teamid
       }
+
+      # 指定一个列作为 rank 的源（可选）。
+      #ranking: rank
+
       batch: 256
       partition: 32
     }
diff --git a/docs-2.0/nebula-exchange/use-exchange/ex-ug-import-from-hbase.md b/docs-2.0/nebula-exchange/use-exchange/ex-ug-import-from-hbase.md
index 40c8cdb3e45..116bd36989e 100644
--- a/docs-2.0/nebula-exchange/use-exchange/ex-ug-import-from-hbase.md
+++ b/docs-2.0/nebula-exchange/use-exchange/ex-ug-import-from-hbase.md
@@ -264,6 +264,9 @@ ROW                                COLUMN+CELL
           field:dst_player
       }
 
+      # 指定一个列作为 rank 的源（可选）。
+      #ranking: rank
+
       # 单批次写入 Nebula Graph 的数据条数。
       batch: 256
 
@@ -293,6 +296,9 @@ ROW                                COLUMN+CELL
           field:teamid
       }
 
+      # 指定一个列作为 rank 的源（可选）。
+      #ranking: rank
+
       batch: 256
       partition: 32
     }
diff --git a/docs-2.0/nebula-exchange/use-exchange/ex-ug-import-from-hive.md b/docs-2.0/nebula-exchange/use-exchange/ex-ug-import-from-hive.md
index f3acc0bf149..fd3daa7ace1 100644
--- a/docs-2.0/nebula-exchange/use-exchange/ex-ug-import-from-hive.md
+++ b/docs-2.0/nebula-exchange/use-exchange/ex-ug-import-from-hive.md
@@ -296,6 +296,9 @@ scala> sql("select playerid, teamid, start_year, end_year from basketball.serve"
         field: dst_player
       }
 
+      # 指定一个列作为 rank 的源（可选）。
+      #ranking: rank
+
       # 单批次写入 Nebula Graph 的最大数据条数。
       batch: 256
 
@@ -319,6 +322,10 @@ scala> sql("select playerid, teamid, start_year, end_year from basketball.serve"
       target: {
         field: teamid
       }
+
+      # 指定一个列作为 rank 的源（可选）。
+      #ranking: rank
+
       batch: 256
       partition: 32
     }
diff --git a/docs-2.0/nebula-exchange/use-exchange/ex-ug-import-from-kafka.md b/docs-2.0/nebula-exchange/use-exchange/ex-ug-import-from-kafka.md
index 52685d35b55..414afe2aa3e 100644
--- a/docs-2.0/nebula-exchange/use-exchange/ex-ug-import-from-kafka.md
+++ b/docs-2.0/nebula-exchange/use-exchange/ex-ug-import-from-kafka.md
@@ -217,6 +217,9 @@
           field:dstPersonId
       }
 
+      # 指定一个列作为 rank 的源（可选）。
+      #ranking: rank
+
       # 单批次写入 Nebula Graph 的数据条数。
       batch: 10
 
@@ -247,6 +250,9 @@
           field:teamId
       }
 
+      # 指定一个列作为 rank 的源（可选）。
+      #ranking: rank
+
       batch: 10
       partition: 10
       interval.seconds: 10
diff --git a/docs-2.0/nebula-exchange/use-exchange/ex-ug-import-from-maxcompute.md b/docs-2.0/nebula-exchange/use-exchange/ex-ug-import-from-maxcompute.md
index c16c1cef83e..bb9c23ce1f0 100644
--- a/docs-2.0/nebula-exchange/use-exchange/ex-ug-import-from-maxcompute.md
+++ b/docs-2.0/nebula-exchange/use-exchange/ex-ug-import-from-maxcompute.md
@@ -264,6 +264,9 @@
         field: dst_player
       }
 
+      # 指定一个列作为 rank 的源（可选）。
+      #ranking: rank
+
       # Spark 分区数量
       partition:10
 
@@ -294,6 +297,10 @@
       target:{
         field: teamid
       }
+
+      # 指定一个列作为 rank 的源（可选）。
+      #ranking: rank
+
       partition:10
       batch:10
     }
diff --git a/docs-2.0/nebula-exchange/use-exchange/ex-ug-import-from-mysql.md b/docs-2.0/nebula-exchange/use-exchange/ex-ug-import-from-mysql.md
index 39f33bd0b67..a1f031b04cc 100644
--- a/docs-2.0/nebula-exchange/use-exchange/ex-ug-import-from-mysql.md
+++ b/docs-2.0/nebula-exchange/use-exchange/ex-ug-import-from-mysql.md
@@ -277,6 +277,9 @@ mysql> desc serve;
         field: dst_player
       }
 
+      # 指定一个列作为 rank 的源（可选）。
+      #ranking: rank
+
       # 单批次写入 Nebula Graph 的数据条数。
       batch: 256
 
@@ -307,6 +310,10 @@ mysql> desc serve;
       target: {
         field: teamid
       }
+
+      # 指定一个列作为 rank 的源（可选）。
+      #ranking: rank
+
       batch: 256
       partition: 32
     }
diff --git a/docs-2.0/nebula-exchange/use-exchange/ex-ug-import-from-pulsar.md b/docs-2.0/nebula-exchange/use-exchange/ex-ug-import-from-pulsar.md
index aa7e01ea372..a9de2e3fb74 100644
--- a/docs-2.0/nebula-exchange/use-exchange/ex-ug-import-from-pulsar.md
+++ b/docs-2.0/nebula-exchange/use-exchange/ex-ug-import-from-pulsar.md
@@ -229,6 +229,9 @@
           field:dst_player
       }
 
+      # 指定一个列作为 rank 的源（可选）。
+      #ranking: rank
+
       # 单批次写入 Nebula Graph 的数据条数。
       batch: 10
 
@@ -262,6 +265,9 @@
           field:teamid
       }
 
+      # 指定一个列作为 rank 的源（可选）。
+      #ranking: rank
+
       batch: 10
       partition: 10
       interval.seconds: 10