diff --git a/tests/bits_tests.rs b/tests/bits_tests.rs
new file mode 100644
index 00000000..b6975be2
--- /dev/null
+++ b/tests/bits_tests.rs
@@ -0,0 +1,59 @@
+pub mod common;
+
+use common::{features::*, TestContext};
+use pretty_assertions::assert_eq;
+use sea_orm::{entity::prelude::*, entity::*, DatabaseConnection};
+
+#[sea_orm_macros::test]
+#[cfg(feature = "sqlx-postgres")]
+async fn main() -> Result<(), DbErr> {
+    let ctx = TestContext::new("bits_tests").await;
+    create_tables(&ctx.db).await?;
+    create_and_update(&ctx.db).await?;
+    ctx.delete().await;
+
+    Ok(())
+}
+
+pub async fn create_and_update(db: &DatabaseConnection) -> Result<(), DbErr> {
+    let bits = bits::Model {
+        id: 1,
+        bit0: 0,
+        bit1: 1,
+        bit8: 8,
+        bit16: 16,
+        bit32: 32,
+        bit64: 64,
+    };
+
+    let res = bits.clone().into_active_model().insert(db).await?;
+
+    let model = Bits::find().one(db).await?;
+    assert_eq!(model, Some(res));
+    assert_eq!(model, Some(bits.clone()));
+
+    let res = bits::ActiveModel {
+        bit32: Set(320),
+        bit64: Set(640),
+        ..bits.clone().into_active_model()
+    }
+    .update(db)
+    .await?;
+
+    let model = Bits::find().one(db).await?;
+    assert_eq!(model, Some(res));
+    assert_eq!(
+        model,
+        Some(bits::Model {
+            id: 1,
+            bit0: 0,
+            bit1: 1,
+            bit8: 8,
+            bit16: 16,
+            bit32: 320,
+            bit64: 640,
+        })
+    );
+
+    Ok(())
+}
diff --git a/tests/common/features/bits.rs b/tests/common/features/bits.rs
new file mode 100644
index 00000000..5c307269
--- /dev/null
+++ b/tests/common/features/bits.rs
@@ -0,0 +1,49 @@
+use sea_orm::entity::prelude::*;
+
+#[derive(Clone, Debug, PartialEq, Eq, DeriveEntityModel)]
+#[sea_orm(table_name = "bits")]
+pub struct Model {
+    #[sea_orm(primary_key)]
+    pub id: i32,
+    #[sea_orm(
+        column_type = r#"custom("BIT")"#,
+        select_as = "BIGINT",
+        save_as = "BIT"
+    )]
+    pub bit0: i64,
+    #[sea_orm(
+        column_type = r#"custom("BIT(1)")"#,
+        select_as = "BIGINT",
+        save_as = "BIT(1)"
+    )]
+    pub bit1: i64,
+    #[sea_orm(
+        column_type = r#"custom("BIT(8)")"#,
+        select_as = "BIGINT",
+        save_as = "BIT(8)"
+    )]
+    pub bit8: i64,
+    #[sea_orm(
+        column_type = r#"custom("BIT(16)")"#,
+        select_as = "BIGINT",
+        save_as = "BIT(16)"
+    )]
+    pub bit16: i64,
+    #[sea_orm(
+        column_type = r#"custom("BIT(32)")"#,
+        select_as = "BIGINT",
+        save_as = "BIT(32)"
+    )]
+    pub bit32: i64,
+    #[sea_orm(
+        column_type = r#"custom("BIT(64)")"#,
+        select_as = "BIGINT",
+        save_as = "BIT(64)"
+    )]
+    pub bit64: i64,
+}
+
+#[derive(Copy, Clone, Debug, EnumIter, DeriveRelation)]
+pub enum Relation {}
+
+impl ActiveModelBehavior for ActiveModel {}
diff --git a/tests/common/features/mod.rs b/tests/common/features/mod.rs
index ed4f8818..4a3895de 100644
--- a/tests/common/features/mod.rs
+++ b/tests/common/features/mod.rs
@@ -2,6 +2,7 @@ pub mod active_enum;
 pub mod active_enum_child;
 pub mod applog;
 pub mod binary;
+pub mod bits;
 pub mod byte_primary_key;
 pub mod collection;
 pub mod custom_active_model;
@@ -26,6 +27,7 @@ pub use active_enum::Entity as ActiveEnum;
 pub use active_enum_child::Entity as ActiveEnumChild;
 pub use applog::Entity as Applog;
 pub use binary::Entity as Binary;
+pub use bits::Entity as Bits;
 pub use byte_primary_key::Entity as BytePrimaryKey;
 pub use collection::Entity as Collection;
 pub use dyn_table_name_lazy_static::Entity as DynTableNameLazyStatic;
diff --git a/tests/common/features/schema.rs b/tests/common/features/schema.rs
index b0431995..e2855b55 100644
--- a/tests/common/features/schema.rs
+++ b/tests/common/features/schema.rs
@@ -48,6 +48,7 @@ pub async fn create_tables(db: &DatabaseConnection) -> Result<(), DbErr> {
     create_edit_log_table(db).await?;
     create_teas_table(db).await?;
     create_binary_table(db).await?;
+    create_bits_table(db).await?;
     create_dyn_table_name_lazy_static_table(db).await?;
 
     if DbBackend::Postgres == db_backend {
@@ -561,6 +562,51 @@ pub async fn create_binary_table(db: &DbConn) -> Result<ExecResult, DbErr> {
     create_table(db, &create_table_stmt, Binary).await
 }
 
+pub async fn create_bits_table(db: &DbConn) -> Result<ExecResult, DbErr> {
+    let create_table_stmt = sea_query::Table::create()
+        .table(bits::Entity.table_ref())
+        .col(
+            ColumnDef::new(bits::Column::Id)
+                .integer()
+                .not_null()
+                .auto_increment()
+                .primary_key(),
+        )
+        .col(
+            ColumnDef::new(bits::Column::Bit0)
+                .custom(Alias::new("BIT"))
+                .not_null(),
+        )
+        .col(
+            ColumnDef::new(bits::Column::Bit1)
+                .custom(Alias::new("BIT(1)"))
+                .not_null(),
+        )
+        .col(
+            ColumnDef::new(bits::Column::Bit8)
+                .custom(Alias::new("BIT(8)"))
+                .not_null(),
+        )
+        .col(
+            ColumnDef::new(bits::Column::Bit16)
+                .custom(Alias::new("BIT(16)"))
+                .not_null(),
+        )
+        .col(
+            ColumnDef::new(bits::Column::Bit32)
+                .custom(Alias::new("BIT(32)"))
+                .not_null(),
+        )
+        .col(
+            ColumnDef::new(bits::Column::Bit64)
+                .custom(Alias::new("BIT(64)"))
+                .not_null(),
+        )
+        .to_owned();
+
+    create_table(db, &create_table_stmt, Bits).await
+}
+
 pub async fn create_dyn_table_name_lazy_static_table(db: &DbConn) -> Result<(), DbErr> {
     use dyn_table_name_lazy_static::*;