diff --git a/tests/_data/assets/schemas/pgsql.sql b/tests/_data/assets/schemas/pgsql.sql
index f39ce6a79bf..de38cb0ebbe 100644
--- a/tests/_data/assets/schemas/pgsql.sql
+++ b/tests/_data/assets/schemas/pgsql.sql
@@ -14,8 +14,6 @@ create table co_invoices
     inv_created_at  timestamp
 );
             
-alter table co_invoices owner to postgres;
-            
 create index co_invoices_inv_created_at_index
     on co_invoices (inv_created_at);
             
@@ -39,8 +37,6 @@ create table co_orders
       ord_name varchar(70)
 );
             
-alter table public.co_orders owner to postgres;
-            
 
 
 drop table if exists private.co_orders_x_products;
@@ -52,8 +48,6 @@ create table private.co_orders_x_products
     oxp_quantity int not null
 );
             
-alter table private.co_orders_x_products owner to postgres;
-            
 
 
 drop table if exists co_products;            
@@ -66,8 +60,6 @@ create table co_products
       prd_name varchar(70)
 );
             
-alter table public.co_products owner to postgres;
-            
 
 
 
diff --git a/tests/_data/fixtures/Migrations/InvoicesMigration.php b/tests/_data/fixtures/Migrations/InvoicesMigration.php
index d44d44f51f2..414d76c399d 100644
--- a/tests/_data/fixtures/Migrations/InvoicesMigration.php
+++ b/tests/_data/fixtures/Migrations/InvoicesMigration.php
@@ -46,10 +46,9 @@ public function insert(
 insert into co_invoices (
     inv_id, inv_cst_id, inv_status_flag, inv_title, inv_total, inv_created_at
 ) values (
-    {$id}, {$custId}, {$status}, "{$title}", {$total}, "{$now}"
+    {$id}, {$custId}, {$status}, '{$title}', {$total}, '{$now}'
 )
 SQL;
-
         return $this->connection->exec($sql);
     }
 
@@ -135,9 +134,6 @@ protected function getSqlPgsql(): array
 );
             ",
             "
-alter table co_invoices owner to postgres;
-            ",
-            "
 create index co_invoices_inv_created_at_index
     on co_invoices (inv_created_at);
             ",
diff --git a/tests/_data/fixtures/Migrations/OrdersMigration.php b/tests/_data/fixtures/Migrations/OrdersMigration.php
index 4322b997bc8..ba1acd459b5 100644
--- a/tests/_data/fixtures/Migrations/OrdersMigration.php
+++ b/tests/_data/fixtures/Migrations/OrdersMigration.php
@@ -78,9 +78,6 @@ protected function getSqlPgsql(): array
       primary key,
       ord_name varchar(70)
 );
-            ",
-            "
-alter table public.co_orders owner to postgres;
             "
         ];
     }
diff --git a/tests/_data/fixtures/Migrations/OrdersProductsMigration.php b/tests/_data/fixtures/Migrations/OrdersProductsMigration.php
index 5592525df6b..8067f12b3f7 100644
--- a/tests/_data/fixtures/Migrations/OrdersProductsMigration.php
+++ b/tests/_data/fixtures/Migrations/OrdersProductsMigration.php
@@ -80,9 +80,6 @@ protected function getSqlPgsql(): array
     oxp_prd_id int not null,
     oxp_quantity int not null
 );
-            ",
-            "
-alter table private.co_orders_x_products owner to postgres;
             "
         ];
     }
diff --git a/tests/_data/fixtures/Migrations/ProductsMigration.php b/tests/_data/fixtures/Migrations/ProductsMigration.php
index 401fbf2f7a1..9ab3ac05345 100644
--- a/tests/_data/fixtures/Migrations/ProductsMigration.php
+++ b/tests/_data/fixtures/Migrations/ProductsMigration.php
@@ -78,9 +78,6 @@ protected function getSqlPgsql(): array
       primary key,
       prd_name varchar(70)
 );
-            ",
-            "
-alter table public.co_products owner to postgres;
             "
         ];
     }
diff --git a/tests/_data/fixtures/Traits/DiTrait.php b/tests/_data/fixtures/Traits/DiTrait.php
index 3e2112b7f34..56bd58d0d94 100644
--- a/tests/_data/fixtures/Traits/DiTrait.php
+++ b/tests/_data/fixtures/Traits/DiTrait.php
@@ -99,7 +99,7 @@ protected function newDbConnection(string $driver): AdapterInterface
                 break;
             case 'pgsql':
                 $options = getOptionsPostgresql();
-                $service = 'postgresql';
+                $driver = 'postgresql';
                 break;
             case 'sqlite':
                 $options = getOptionsSqlite();
diff --git a/tests/_envs/pgsql.yml b/tests/_envs/pgsql.yml
index 859c7018e9d..9122daeb201 100644
--- a/tests/_envs/pgsql.yml
+++ b/tests/_envs/pgsql.yml
@@ -11,11 +11,4 @@ modules:
         reconnect: true
         waitlock: 10
         initial_queries:
-          - 'DROP SCHEMA public CASCADE;'
-          - 'DROP SCHEMA private CASCADE;'
-          - 'CREATE SCHEMA public;'
-          - 'CREATE SCHEMA private;'
-          - 'REVOKE ALL ON SCHEMA public FROM PUBLIC;'
-          - 'REVOKE ALL ON SCHEMA public FROM %DATA_POSTGRES_USER%;'
-          - 'GRANT ALL ON SCHEMA public TO %DATA_POSTGRES_USER%;'
-          - 'GRANT ALL ON SCHEMA public TO public;'
+          - 'CREATE SCHEMA IF NOT EXISTS private;'
diff --git a/tests/database/Db/Adapter/Pdo/QueryCest.php b/tests/database/Db/Adapter/Pdo/QueryCest.php
index 23470245d3b..a8b158688c7 100644
--- a/tests/database/Db/Adapter/Pdo/QueryCest.php
+++ b/tests/database/Db/Adapter/Pdo/QueryCest.php
@@ -38,12 +38,13 @@ public function _before(DatabaseTester $I)
      * @author Phalcon Team <team@phalcon.io>
      * @since  2020-02-22
      *
+     * @group pgsql
      * @group mysql
      * @group sqlite
      */
     public function dbAdapterPdoQuery(DatabaseTester $I)
     {
-        $I->wantToTest('Db\Adapter\Pdo\Mysql - query()');
+        $I->wantToTest('Db\Adapter\Pdo - query()');
 
         $connection = $I->getConnection();
         $db = $this->container->get('db');
diff --git a/tests/database/Mvc/Model/Criteria/JoinCest.php b/tests/database/Mvc/Model/Criteria/JoinCest.php
index 8c79b049ac4..146f81a04ac 100644
--- a/tests/database/Mvc/Model/Criteria/JoinCest.php
+++ b/tests/database/Mvc/Model/Criteria/JoinCest.php
@@ -21,6 +21,7 @@
 use Phalcon\Test\Models\Invoices;
 use Phalcon\Test\Models\Orders;
 use Phalcon\Test\Models\Products;
+use Phalcon\Mvc\Model\Resultset\Simple;
 
 /**
  * Class JoinCest
@@ -74,6 +75,7 @@ public function mvcModelCriteriaJoin(DatabaseTester $I)
      * @since  2020-02-06
      *
      * @group mysql
+     * @group pgsql
      */
     public function mvcModelCriteriaJoinManyToManyMultipleSchema(DatabaseTester $I)
     {
@@ -92,13 +94,12 @@ public function mvcModelCriteriaJoinManyToManyMultipleSchema(DatabaseTester $I)
         $builder->from(Orders::class);
         $builder->join(Products::class);
 
-        $expected = 'SELECT `co_orders`.`ord_id`, `co_orders`.`ord_name` '
-            . 'FROM `co_orders`  '
-            . 'INNER JOIN `private`.`co_orders_x_products` '
-            . 'ON `co_orders`.`ord_id` = `co_orders_x_products`.`oxp_ord_id` '
-            . 'INNER JOIN `co_products` ON `co_orders_x_products`.`oxp_prd_id` = `co_products`.`prd_id`';
-        $actual   = $builder->getQuery()->getSql();
+        $expected = 'private';
+        $query    = $builder->getQuery();
+        $request  = $query->getSql();
 
-        $I->assertEquals($expected, $actual['sql']);
+        $I->assertContains($expected, $request['sql']);
+
+        $I->assertInstanceOf(Simple::class, $query->execute());
     }
 }