diff --git a/Cargo.toml b/Cargo.toml
index 0c8de3ef..15c2b240 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -30,7 +30,7 @@ futures-util = { version = "^0.3" }
 log = { version = "^0.4", optional = true }
 rust_decimal = { version = "^1", optional = true }
 sea-orm-macros = { version = "^0.2.6", path = "sea-orm-macros", optional = true }
-sea-query = { version = "^0.17.0", features = ["thread-safe"] }
+sea-query = { version = "^0.17.1", features = ["thread-safe"] }
 sea-strum = { version = "^0.21", features = ["derive", "sea-orm"] }
 serde = { version = "^1.0", features = ["derive"] }
 serde_json = { version = "^1", optional = true }
diff --git a/src/driver/sqlx_sqlite.rs b/src/driver/sqlx_sqlite.rs
index b02f4408..db3fa4e2 100644
--- a/src/driver/sqlx_sqlite.rs
+++ b/src/driver/sqlx_sqlite.rs
@@ -1,5 +1,5 @@
 use sqlx::{
-    sqlite::{SqliteArguments, SqliteQueryResult, SqliteRow},
+    sqlite::{SqliteArguments, SqlitePoolOptions, SqliteQueryResult, SqliteRow},
     Sqlite, SqlitePool,
 };
 
@@ -24,7 +24,11 @@ impl SqlxSqliteConnector {
     }
 
     pub async fn connect(string: &str) -> Result<DatabaseConnection, DbErr> {
-        if let Ok(pool) = SqlitePool::connect(string).await {
+        if let Ok(pool) = SqlitePoolOptions::new()
+            .max_connections(1)
+            .connect(string)
+            .await
+        {
             Ok(DatabaseConnection::SqlxSqlitePoolConnection(
                 SqlxSqlitePoolConnection { pool },
             ))
diff --git a/src/entity/active_model.rs b/src/entity/active_model.rs
index 6f4b86f6..c5b1db97 100644
--- a/src/entity/active_model.rs
+++ b/src/entity/active_model.rs
@@ -1,8 +1,8 @@
 use crate::{
-    error::*, DatabaseConnection, DeleteResult, EntityTrait, Iterable, PrimaryKeyToColumn,
-    PrimaryKeyTrait, Value,
+    error::*, DatabaseConnection, DeleteResult, EntityTrait, Iterable, PrimaryKeyToColumn, Value,
 };
 use async_trait::async_trait;
+use sea_query::ValueTuple;
 use std::fmt::Debug;
 
 #[derive(Clone, Debug, Default)]
@@ -10,7 +10,8 @@ pub struct ActiveValue<V>
 where
     V: Into<Value>,
 {
-    value: Option<V>,
+    // Don't want to call ActiveValue::unwrap() and cause panic
+    pub(self) value: Option<V>,
     state: ActiveValueState,
 }
 
@@ -67,6 +68,42 @@ pub trait ActiveModelTrait: Clone + Debug {
 
     fn default() -> Self;
 
+    #[allow(clippy::question_mark)]
+    fn get_primary_key_value(&self) -> Option<ValueTuple> {
+        let mut cols = <Self::Entity as EntityTrait>::PrimaryKey::iter();
+        macro_rules! next {
+            () => {
+                if let Some(col) = cols.next() {
+                    if let Some(val) = self.get(col.into_column()).value {
+                        val
+                    } else {
+                        return None;
+                    }
+                } else {
+                    return None;
+                }
+            };
+        }
+        match <Self::Entity as EntityTrait>::PrimaryKey::iter().count() {
+            1 => {
+                let s1 = next!();
+                Some(ValueTuple::One(s1))
+            }
+            2 => {
+                let s1 = next!();
+                let s2 = next!();
+                Some(ValueTuple::Two(s1, s2))
+            }
+            3 => {
+                let s1 = next!();
+                let s2 = next!();
+                let s3 = next!();
+                Some(ValueTuple::Three(s1, s2, s3))
+            }
+            _ => panic!("The arity cannot be larger than 3"),
+        }
+    }
+
     async fn insert(self, db: &DatabaseConnection) -> Result<Self, DbErr>
     where
         <Self::Entity as EntityTrait>::Model: IntoActiveModel<Self>,
@@ -74,19 +111,12 @@ pub trait ActiveModelTrait: Clone + Debug {
         let am = self;
         let exec = <Self::Entity as EntityTrait>::insert(am).exec(db);
         let res = exec.await?;
-        // Assume valid last_insert_id is not equals to Default::default()
-        if res.last_insert_id
-            != <<Self::Entity as EntityTrait>::PrimaryKey as PrimaryKeyTrait>::ValueType::default()
-        {
-            let found = <Self::Entity as EntityTrait>::find_by_id(res.last_insert_id)
-                .one(db)
-                .await?;
-            match found {
-                Some(model) => Ok(model.into_active_model()),
-                None => Err(DbErr::Exec("Failed to find inserted item".to_owned())),
-            }
-        } else {
-            Ok(Self::default())
+        let found = <Self::Entity as EntityTrait>::find_by_id(res.last_insert_id)
+            .one(db)
+            .await?;
+        match found {
+            Some(model) => Ok(model.into_active_model()),
+            None => Err(DbErr::Exec("Failed to find inserted item".to_owned())),
         }
     }
 
diff --git a/src/entity/primary_key.rs b/src/entity/primary_key.rs
index 463f1482..a5e4cde0 100644
--- a/src/entity/primary_key.rs
+++ b/src/entity/primary_key.rs
@@ -1,16 +1,16 @@
 use super::{ColumnTrait, IdenStatic, Iterable};
 use crate::{TryFromU64, TryGetableMany};
-use sea_query::IntoValueTuple;
+use sea_query::{FromValueTuple, IntoValueTuple};
 use std::fmt::Debug;
 
 //LINT: composite primary key cannot auto increment
 pub trait PrimaryKeyTrait: IdenStatic + Iterable {
     type ValueType: Sized
         + Send
-        + Default
         + Debug
         + PartialEq
         + IntoValueTuple
+        + FromValueTuple
         + TryGetableMany
         + TryFromU64;
 
diff --git a/src/executor/insert.rs b/src/executor/insert.rs
index a44867f7..02d02c0b 100644
--- a/src/executor/insert.rs
+++ b/src/executor/insert.rs
@@ -2,14 +2,15 @@ use crate::{
     error::*, ActiveModelTrait, DatabaseConnection, DbBackend, EntityTrait, Insert,
     PrimaryKeyTrait, Statement, TryFromU64,
 };
-use sea_query::InsertStatement;
+use sea_query::{FromValueTuple, InsertStatement, ValueTuple};
 use std::{future::Future, marker::PhantomData};
 
-#[derive(Clone, Debug)]
+#[derive(Debug)]
 pub struct Inserter<A>
 where
     A: ActiveModelTrait,
 {
+    primary_key: Option<ValueTuple>,
     query: InsertStatement,
     model: PhantomData<A>,
 }
@@ -34,7 +35,6 @@ where
     where
         A: 'a,
     {
-        // TODO: extract primary key's value from query
         // so that self is dropped before entering await
         let mut query = self.query;
         if db.get_database_backend() == DbBackend::Postgres {
@@ -47,8 +47,7 @@ where
                 );
             }
         }
-        Inserter::<A>::new(query).exec(db)
-        // TODO: return primary key if extracted before, otherwise use InsertResult
+        Inserter::<A>::new(self.primary_key, query).exec(db)
     }
 }
 
@@ -56,8 +55,9 @@ impl<A> Inserter<A>
 where
     A: ActiveModelTrait,
 {
-    pub fn new(query: InsertStatement) -> Self {
+    pub fn new(primary_key: Option<ValueTuple>, query: InsertStatement) -> Self {
         Self {
+            primary_key,
             query,
             model: PhantomData,
         }
@@ -71,12 +71,13 @@ where
         A: 'a,
     {
         let builder = db.get_database_backend();
-        exec_insert(builder.build(&self.query), db)
+        exec_insert(self.primary_key, builder.build(&self.query), db)
     }
 }
 
 // Only Statement impl Send
 async fn exec_insert<A>(
+    primary_key: Option<ValueTuple>,
     statement: Statement,
     db: &DatabaseConnection,
 ) -> Result<InsertResult<A>, DbErr>
@@ -85,21 +86,26 @@ where
 {
     type PrimaryKey<A> = <<A as ActiveModelTrait>::Entity as EntityTrait>::PrimaryKey;
     type ValueTypeOf<A> = <PrimaryKey<A> as PrimaryKeyTrait>::ValueType;
-    let last_insert_id = match db.get_database_backend() {
+    let last_insert_id_opt = match db.get_database_backend() {
         DbBackend::Postgres => {
             use crate::{sea_query::Iden, Iterable};
             let cols = PrimaryKey::<A>::iter()
                 .map(|col| col.to_string())
                 .collect::<Vec<_>>();
             let res = db.query_one(statement).await?.unwrap();
-            res.try_get_many("", cols.as_ref()).unwrap_or_default()
+            res.try_get_many("", cols.as_ref()).ok()
         }
         _ => {
             let last_insert_id = db.execute(statement).await?.last_insert_id();
-            ValueTypeOf::<A>::try_from_u64(last_insert_id)
-                .ok()
-                .unwrap_or_default()
+            ValueTypeOf::<A>::try_from_u64(last_insert_id).ok()
         }
     };
+    let last_insert_id = match last_insert_id_opt {
+        Some(last_insert_id) => last_insert_id,
+        None => match primary_key {
+            Some(value_tuple) => FromValueTuple::from_value_tuple(value_tuple),
+            None => return Err(DbErr::Exec("Fail to unpack last_insert_id".to_owned())),
+        },
+    };
     Ok(InsertResult { last_insert_id })
 }
diff --git a/src/query/insert.rs b/src/query/insert.rs
index f2d60dc8..5e504a0c 100644
--- a/src/query/insert.rs
+++ b/src/query/insert.rs
@@ -1,14 +1,18 @@
-use crate::{ActiveModelTrait, EntityName, EntityTrait, IntoActiveModel, Iterable, QueryTrait};
+use crate::{
+    ActiveModelTrait, EntityName, EntityTrait, IntoActiveModel, Iterable, PrimaryKeyTrait,
+    QueryTrait,
+};
 use core::marker::PhantomData;
-use sea_query::InsertStatement;
+use sea_query::{InsertStatement, ValueTuple};
 
-#[derive(Clone, Debug)]
+#[derive(Debug)]
 pub struct Insert<A>
 where
     A: ActiveModelTrait,
 {
     pub(crate) query: InsertStatement,
     pub(crate) columns: Vec<bool>,
+    pub(crate) primary_key: Option<ValueTuple>,
     pub(crate) model: PhantomData<A>,
 }
 
@@ -31,6 +35,7 @@ where
                 .into_table(A::Entity::default().table_ref())
                 .to_owned(),
             columns: Vec::new(),
+            primary_key: None,
             model: PhantomData,
         }
     }
@@ -107,6 +112,12 @@ where
         M: IntoActiveModel<A>,
     {
         let mut am: A = m.into_active_model();
+        self.primary_key =
+            if !<<A::Entity as EntityTrait>::PrimaryKey as PrimaryKeyTrait>::auto_increment() {
+                am.get_primary_key_value()
+            } else {
+                None
+            };
         let mut columns = Vec::new();
         let mut values = Vec::new();
         let columns_empty = self.columns.is_empty();
diff --git a/tests/crud/create_cake.rs b/tests/crud/create_cake.rs
index 4fa914a5..df5130aa 100644
--- a/tests/crud/create_cake.rs
+++ b/tests/crud/create_cake.rs
@@ -58,11 +58,7 @@ pub async fn test_create_cake(db: &DbConn) {
         .expect("could not insert cake_baker");
     assert_eq!(
         cake_baker_res.last_insert_id,
-        if cfg!(feature = "sqlx-postgres") {
-            (cake_baker.cake_id.unwrap(), cake_baker.baker_id.unwrap())
-        } else {
-            Default::default()
-        }
+        (cake_baker.cake_id.unwrap(), cake_baker.baker_id.unwrap())
     );
 
     assert!(cake.is_some());
diff --git a/tests/crud/create_lineitem.rs b/tests/crud/create_lineitem.rs
index da82cc82..0ba9c7d3 100644
--- a/tests/crud/create_lineitem.rs
+++ b/tests/crud/create_lineitem.rs
@@ -57,11 +57,7 @@ pub async fn test_create_lineitem(db: &DbConn) {
         .expect("could not insert cake_baker");
     assert_eq!(
         cake_baker_res.last_insert_id,
-        if cfg!(feature = "sqlx-postgres") {
-            (cake_baker.cake_id.unwrap(), cake_baker.baker_id.unwrap())
-        } else {
-            Default::default()
-        }
+        (cake_baker.cake_id.unwrap(), cake_baker.baker_id.unwrap())
     );
 
     // Customer
diff --git a/tests/crud/create_order.rs b/tests/crud/create_order.rs
index ba8ff09b..6de3d46f 100644
--- a/tests/crud/create_order.rs
+++ b/tests/crud/create_order.rs
@@ -57,11 +57,7 @@ pub async fn test_create_order(db: &DbConn) {
         .expect("could not insert cake_baker");
     assert_eq!(
         cake_baker_res.last_insert_id,
-        if cfg!(feature = "sqlx-postgres") {
-            (cake_baker.cake_id.unwrap(), cake_baker.baker_id.unwrap())
-        } else {
-            Default::default()
-        }
+        (cake_baker.cake_id.unwrap(), cake_baker.baker_id.unwrap())
     );
 
     // Customer
diff --git a/tests/sequential_op_tests.rs b/tests/sequential_op_tests.rs
index 28333d84..286e856a 100644
--- a/tests/sequential_op_tests.rs
+++ b/tests/sequential_op_tests.rs
@@ -84,11 +84,7 @@ async fn init_setup(db: &DatabaseConnection) {
         .expect("could not insert cake_baker");
     assert_eq!(
         cake_baker_res.last_insert_id,
-        if cfg!(feature = "sqlx-postgres") {
-            (cake_baker.cake_id.unwrap(), cake_baker.baker_id.unwrap())
-        } else {
-            Default::default()
-        }
+        (cake_baker.cake_id.unwrap(), cake_baker.baker_id.unwrap())
     );
 
     let customer_kate = customer::ActiveModel {
@@ -225,11 +221,7 @@ async fn create_cake(db: &DatabaseConnection, baker: baker::Model) -> Option<cak
         .expect("could not insert cake_baker");
     assert_eq!(
         cake_baker_res.last_insert_id,
-        if cfg!(feature = "sqlx-postgres") {
-            (cake_baker.cake_id.unwrap(), cake_baker.baker_id.unwrap())
-        } else {
-            Default::default()
-        }
+        (cake_baker.cake_id.unwrap(), cake_baker.baker_id.unwrap())
     );
 
     Cake::find_by_id(cake_insert_res.last_insert_id)
diff --git a/tests/uuid_tests.rs b/tests/uuid_tests.rs
index 3fcc368a..54061850 100644
--- a/tests/uuid_tests.rs
+++ b/tests/uuid_tests.rs
@@ -34,14 +34,7 @@ pub async fn create_metadata(db: &DatabaseConnection) -> Result<(), DbErr> {
 
     assert_eq!(Metadata::find().one(db).await?, Some(metadata.clone()));
 
-    assert_eq!(
-        res.last_insert_id,
-        if cfg!(feature = "sqlx-postgres") {
-            metadata.uuid
-        } else {
-            Default::default()
-        }
-    );
+    assert_eq!(res.last_insert_id, metadata.uuid);
 
     let update_res = Metadata::update(metadata::ActiveModel {
         value: Set("0.22".to_owned()),