diff --git a/.sqlx/query-71093ffc23294c01b80af7b1c43fab3a5a67eef820f9885c72117364c683fb4a.json b/.sqlx/query-71093ffc23294c01b80af7b1c43fab3a5a67eef820f9885c72117364c683fb4a.json
deleted file mode 100644
index 2581b380..00000000
--- a/.sqlx/query-71093ffc23294c01b80af7b1c43fab3a5a67eef820f9885c72117364c683fb4a.json
+++ /dev/null
@@ -1,70 +0,0 @@
-{
-  "db_name": "PostgreSQL",
-  "query": "\n      SELECT\n        workspace_id,\n        database_storage_id,\n        owner_uid,\n        (SELECT name FROM public.af_user WHERE uid = owner_uid) AS owner_name,\n        created_at,\n        workspace_type,\n        deleted_at,\n        workspace_name,\n        icon\n      FROM public.af_workspace\n      WHERE workspace_id IN (\n        SELECT workspace_id FROM public.af_workspace_member\n        WHERE af_workspace_member.uid = (SELECT uid FROM public.af_user WHERE uuid = $1)\n      );\n    ",
-  "describe": {
-    "columns": [
-      {
-        "ordinal": 0,
-        "name": "workspace_id",
-        "type_info": "Uuid"
-      },
-      {
-        "ordinal": 1,
-        "name": "database_storage_id",
-        "type_info": "Uuid"
-      },
-      {
-        "ordinal": 2,
-        "name": "owner_uid",
-        "type_info": "Int8"
-      },
-      {
-        "ordinal": 3,
-        "name": "owner_name",
-        "type_info": "Text"
-      },
-      {
-        "ordinal": 4,
-        "name": "created_at",
-        "type_info": "Timestamptz"
-      },
-      {
-        "ordinal": 5,
-        "name": "workspace_type",
-        "type_info": "Int4"
-      },
-      {
-        "ordinal": 6,
-        "name": "deleted_at",
-        "type_info": "Timestamptz"
-      },
-      {
-        "ordinal": 7,
-        "name": "workspace_name",
-        "type_info": "Text"
-      },
-      {
-        "ordinal": 8,
-        "name": "icon",
-        "type_info": "Text"
-      }
-    ],
-    "parameters": {
-      "Left": [
-        "Uuid"
-      ]
-    },
-    "nullable": [
-      false,
-      false,
-      false,
-      null,
-      true,
-      false,
-      true,
-      true,
-      false
-    ]
-  },
-  "hash": "71093ffc23294c01b80af7b1c43fab3a5a67eef820f9885c72117364c683fb4a"
-}
diff --git a/Cargo.lock b/Cargo.lock
index a819725e..5897ddf3 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -86,7 +86,7 @@ dependencies = [
  "encoding_rs",
  "flate2",
  "futures-core",
- "h2 0.3.24",
+ "h2 0.3.26",
  "http 0.2.11",
  "httparse",
  "httpdate",
@@ -875,7 +875,7 @@ dependencies = [
  "derive_more",
  "futures-core",
  "futures-util",
- "h2 0.3.24",
+ "h2 0.3.26",
  "http 0.2.11",
  "itoa",
  "log",
@@ -2669,9 +2669,9 @@ dependencies = [
 
 [[package]]
 name = "h2"
-version = "0.3.24"
+version = "0.3.26"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "bb2c4422095b67ee78da96fbb51a4cc413b3b25883c7717ff7ca1ab31022c9c9"
+checksum = "81fe527a889e1532da5c525686d96d4c2e74cdd345badf8dfef9f6b39dd5f5e8"
 dependencies = [
  "bytes",
  "fnv",
@@ -2913,7 +2913,7 @@ dependencies = [
  "futures-channel",
  "futures-core",
  "futures-util",
- "h2 0.3.24",
+ "h2 0.3.26",
  "http 0.2.11",
  "http-body 0.4.6",
  "httparse",
@@ -4590,7 +4590,7 @@ dependencies = [
  "encoding_rs",
  "futures-core",
  "futures-util",
- "h2 0.3.24",
+ "h2 0.3.26",
  "http 0.2.11",
  "http-body 0.4.6",
  "hyper 0.14.28",
diff --git a/libs/database/src/workspace.rs b/libs/database/src/workspace.rs
index 9cf2fa6f..00006796 100644
--- a/libs/database/src/workspace.rs
+++ b/libs/database/src/workspace.rs
@@ -588,19 +588,19 @@ pub async fn select_all_user_workspaces<'a, E: Executor<'a, Database = Postgres>
     AFWorkspaceRow,
     r#"
       SELECT
-        workspace_id,
-        database_storage_id,
-        owner_uid,
-        (SELECT name FROM public.af_user WHERE uid = owner_uid) AS owner_name,
-        created_at,
-        workspace_type,
-        deleted_at,
-        workspace_name,
-        icon
-      FROM public.af_workspace
-      WHERE workspace_id IN (
-        SELECT workspace_id FROM public.af_workspace_member
-        WHERE af_workspace_member.uid = (SELECT uid FROM public.af_user WHERE uuid = $1)
+        w.workspace_id,
+        w.database_storage_id,
+        w.owner_uid,
+        (SELECT name FROM public.af_user WHERE uid = w.owner_uid) AS owner_name,
+        w.created_at,
+        w.workspace_type,
+        w.deleted_at,
+        w.workspace_name,
+        w.icon
+      FROM af_workspace w
+      JOIN af_workspace_member wm ON w.workspace_id = wm.workspace_id
+      WHERE wm.uid = (
+         SELECT uid FROM public.af_user WHERE uuid = $1
       );
     "#,
     user_uuid
diff --git a/tests/main.rs b/tests/main.rs
index 83983fdb..8980c7a0 100644
--- a/tests/main.rs
+++ b/tests/main.rs
@@ -1,7 +1,7 @@
 mod collab;
 mod collab_snapshot;
-// mod collab_stream;
 mod gotrue;
+mod pg_sql;
 mod user;
 mod websocket;
 mod workspace;
diff --git a/tests/pg_sql/mod.rs b/tests/pg_sql/mod.rs
new file mode 100644
index 00000000..7cac0f51
--- /dev/null
+++ b/tests/pg_sql/mod.rs
@@ -0,0 +1,2 @@
+mod util;
+mod workspace_test;
diff --git a/tests/pg_sql/util.rs b/tests/pg_sql/util.rs
new file mode 100644
index 00000000..848217b7
--- /dev/null
+++ b/tests/pg_sql/util.rs
@@ -0,0 +1,59 @@
+use lazy_static::lazy_static;
+use snowflake::Snowflake;
+use sqlx::PgPool;
+use tokio::sync::RwLock;
+use uuid::Uuid;
+
+pub async fn setup_db(pool: &PgPool) -> anyhow::Result<()> {
+  // Have to manually create schema and tables managed by gotrue but referenced by our
+  // migration scripts.
+  sqlx::query(r#"create schema auth"#).execute(pool).await?;
+  sqlx::query(
+    r#"
+      CREATE TABLE auth.users(
+        id uuid NOT NULL UNIQUE,
+        deleted_at timestamptz null,
+        CONSTRAINT users_pkey PRIMARY KEY (id)
+      )
+    "#,
+  )
+  .execute(pool)
+  .await?;
+
+  sqlx::migrate!("./migrations")
+    .set_ignore_missing(true)
+    .run(pool)
+    .await
+    .unwrap();
+  Ok(())
+}
+
+pub async fn insert_auth_user(pool: &PgPool, user_uuid: Uuid) -> anyhow::Result<()> {
+  sqlx::query(
+    r#"
+      INSERT INTO auth.users (id)
+      VALUES ($1)
+    "#,
+  )
+  .bind(user_uuid)
+  .execute(pool)
+  .await?;
+  Ok(())
+}
+
+lazy_static! {
+  pub static ref ID_GEN: RwLock<Snowflake> = RwLock::new(Snowflake::new(1));
+}
+
+pub async fn test_create_user(
+  pool: &PgPool,
+  user_uuid: Uuid,
+  email: &str,
+  name: &str,
+) -> anyhow::Result<()> {
+  let uid = ID_GEN.write().await.next_id();
+  database::user::create_user(pool, uid, &user_uuid, email, name)
+    .await
+    .unwrap();
+  Ok(())
+}
diff --git a/tests/pg_sql/workspace_test.rs b/tests/pg_sql/workspace_test.rs
new file mode 100644
index 00000000..e7a066a3
--- /dev/null
+++ b/tests/pg_sql/workspace_test.rs
@@ -0,0 +1,18 @@
+use crate::pg_sql::util::{insert_auth_user, setup_db, test_create_user};
+use sqlx::PgPool;
+
+#[sqlx::test(migrations = false)]
+async fn basic_test(pool: PgPool) -> sqlx::Result<()> {
+  setup_db(&pool).await.unwrap();
+
+  let user_uuid = uuid::Uuid::new_v4();
+  let name = user_uuid.to_string();
+  let email = format!("{}@appflowy.io", name);
+
+  insert_auth_user(&pool, user_uuid).await.unwrap();
+  test_create_user(&pool, user_uuid, &email, &name)
+    .await
+    .unwrap();
+
+  Ok(())
+}