diff --git a/example/session_example.go b/example/session_example.go
index bb85240..b370435 100644
--- a/example/session_example.go
+++ b/example/session_example.go
@@ -57,8 +57,6 @@ func main() {
 	}
 	defer session.Close()
 
-	fastInsertRecords()
-
 	setStorageGroup("root.ln1")
 	deleteStorageGroup("root.ln1")
 
@@ -383,26 +381,6 @@ func insertAlignedRecord() {
 	fmt.Println()
 }
 
-func fastInsertRecords() {
-	var (
-		deviceIds = []string{"root.fast.d1", "root.fast.d2"}
-		dataTypes = [][]client.TSDataType{{client.INT32, client.INT32}, {client.INT32, client.INT32}}
-		values    = [][]interface{}{{int32(120), int32(121)}, {int32(130), int32(131)}}
-		timestamp = []int64{12, 13}
-	)
-	checkError(session.FastInsertRecords(deviceIds, dataTypes, values, timestamp))
-	sessionDataSet, err := session.ExecuteStatement("show devices")
-	if err == nil {
-		printDataSet0(sessionDataSet)
-		sessionDataSet.Close()
-	} else {
-		log.Println(err)
-	}
-
-	deleteTimeseries("root.fast.**")
-	fmt.Println()
-}
-
 func insertRecords() {
 	var (
 		deviceId     = []string{"root.sg1.dev1"}