diff --git a/example/src/main.rs b/example/src/main.rs
index f2ff96b..d56ca7d 100644
--- a/example/src/main.rs
+++ b/example/src/main.rs
@@ -1,3 +1,4 @@
+use std::time::SystemTime;
 use tracing::info;
 use tracing_log::log::LevelFilter;
 use tracing_subscriber::{fmt, layer::SubscriberExt, util::SubscriberInitExt, EnvFilter};
@@ -18,7 +19,7 @@ async fn main() -> Result<(), Box<dyn std::error::Error>> {
     assert_eq!(row.0, 2);
 
     let conn = pool.acquire().await?;
-    sqlx::query("CREATE TABLE test4 (id Uint64 NOT NULL, name Utf8, age UInt8 NOT NULL, description Utf8, PRIMARY KEY (id))")
+    sqlx::query("CREATE TABLE test4 (id Uint64 NOT NULL, name Utf8, age UInt8 NOT NULL, description Utf8, updated_at DateTime, PRIMARY KEY (id))")
         .execute(conn.schema())
         .await?;
 
@@ -26,7 +27,8 @@ async fn main() -> Result<(), Box<dyn std::error::Error>> {
         id: 13u64,
         name: "test".to_string(),
         age: 32u8,
-        description: None
+        description: None,
+        updated_at: None
     };
 
     let res = sqlx::query("DELETE FROM test4 where id = $id")
@@ -36,7 +38,7 @@ async fn main() -> Result<(), Box<dyn std::error::Error>> {
     info!("rows affected: {}", res.rows_affected());
 
 
-    sqlx::query("INSERT INTO test4 (id, name, age, description) VALUES ( $arg_1, $arg_2, $age, $arg_3)")
+    sqlx::query("INSERT INTO test4 (id, name, age, description, updated_at) VALUES ( $arg_1, $arg_2, $age, $arg_3, CurrentUtcDate())")
         .bind(test_user_info.id)
         .bind(test_user_info.name)
         .bind(("age", test_user_info.age))
@@ -64,6 +66,7 @@ struct UserInfo {
     name: String,
     age: u8,
     description: Option<String>,
+    updated_at: Option<SystemTime>
 }
 
 fn init_logs() {