diff --git a/tests/connectors/core/test_records.py b/tests/connectors/core/test_records.py
index b4e23832660ef511cabfc3f8927af5cd73de43f8..d572fde70565ccdeec7147671bf9f23a77dbd74a 100644
--- a/tests/connectors/core/test_records.py
+++ b/tests/connectors/core/test_records.py
@@ -780,60 +780,60 @@ class CoreRecordsTestMixin:
             self.assertIn(row_4, results)
             self.assertIn(row_5, results)
 
-    # def test__select__aggregates(self):
-    #     """"""
-    #     table_name = 'test_queries__select__aggregate'
-    #     # Verify table exists.
-    #     try:
-    #         self.connector.query.execute('CREATE TABLE {0}{1};'.format(table_name, self._columns_clause__aggregates))
-    #     except self.connector.errors.table_already_exists:
-    #         # Table already exists, as we want.
-    #         pass
-    #
-    #     # Prepopulate with a few records.
-    #     self.connector.records.insert_many(
-    #         table_name,
-    #         [
-    #             ('test one', 10, False),
-    #             ('test two', 12, False),
-    #             ('test three', 5, False),
-    #             ('test four', 3, False),
-    #             ('test five', 22, False),
-    #         ],
-    #         columns_clause=('test_str, test_int, test_bool'),
-    #     )
-    #
-    #     with self.subTest('SELECT with AVG aggregation'):
-    #         # Run test query.
-    #         results = self.connector.records.select(table_name, 'AVG(test_int)')
-    #
-    #         # Verify return aggregate result.
-    #         self.assertEqual(len(results), 1)
-    #         self.assertEqual(results[0][0], Decimal('10.4'))
-    #
-    #     with self.subTest('SELECT with MAX aggregation'):
-    #         # Run test query.
-    #         results = self.connector.records.select(table_name, 'MAX(test_int)')
-    #
-    #         # Verify return aggregate result.
-    #         self.assertEqual(len(results), 1)
-    #         self.assertEqual(results[0][0], 22)
-    #
-    #     with self.subTest('SELECT with MIN aggregation'):
-    #         # Run test query.
-    #         results = self.connector.records.select(table_name, 'MIN(test_int)')
-    #
-    #         # Verify return aggregate result.
-    #         self.assertEqual(len(results), 1)
-    #         self.assertEqual(results[0][0], 3)
-    #
-    #     with self.subTest('SELECT with SUM aggregation'):
-    #         # Run test query.
-    #         results = self.connector.records.select(table_name, 'SUM(test_int)')
-    #
-    #         # Verify return aggregate result.
-    #         self.assertEqual(len(results), 1)
-    #         self.assertEqual(results[0][0], 52)
+    def test__select__aggregates(self):
+        """"""
+        table_name = 'test_queries__select__aggregate'
+        # Verify table exists.
+        try:
+            self.connector.query.execute('CREATE TABLE {0}{1};'.format(table_name, self._columns_clause__aggregates))
+        except self.connector.errors.table_already_exists:
+            # Table already exists, as we want.
+            pass
+
+        # Prepopulate with a few records.
+        self.connector.records.insert_many(
+            table_name,
+            [
+                ('test one', 10, False),
+                ('test two', 12, False),
+                ('test three', 5, False),
+                ('test four', 3, False),
+                ('test five', 22, False),
+            ],
+            columns_clause=('test_str, test_int, test_bool'),
+        )
+
+        with self.subTest('SELECT with AVG aggregation'):
+            # Run test query.
+            results = self.connector.records.select(table_name, 'AVG(test_int)')
+
+            # Verify return aggregate result.
+            self.assertEqual(len(results), 1)
+            self.assertEqual(results[0][0], Decimal('10.4'))
+
+        with self.subTest('SELECT with MAX aggregation'):
+            # Run test query.
+            results = self.connector.records.select(table_name, 'MAX(test_int)')
+
+            # Verify return aggregate result.
+            self.assertEqual(len(results), 1)
+            self.assertEqual(results[0][0], 22)
+
+        with self.subTest('SELECT with MIN aggregation'):
+            # Run test query.
+            results = self.connector.records.select(table_name, 'MIN(test_int)')
+
+            # Verify return aggregate result.
+            self.assertEqual(len(results), 1)
+            self.assertEqual(results[0][0], 3)
+
+        with self.subTest('SELECT with SUM aggregation'):
+            # Run test query.
+            results = self.connector.records.select(table_name, 'SUM(test_int)')
+
+            # Verify return aggregate result.
+            self.assertEqual(len(results), 1)
+            self.assertEqual(results[0][0], 52)
 
     def test__insert__basic__success(self):
         """
diff --git a/tests/connectors/postgresql/test_records.py b/tests/connectors/postgresql/test_records.py
index 2dc13d1ceb70ddd20770024a975573d614cc606d..0027928ec3ba03914ea8f859e4a5b11d262779eb 100644
--- a/tests/connectors/postgresql/test_records.py
+++ b/tests/connectors/postgresql/test_records.py
@@ -64,105 +64,105 @@ class TestPostgresqlRecords(TestPostgresqlDatabaseParent, CoreRecordsTestMixin):
             with self.assertRaises(self.connector.errors.table_already_exists):
                 self.connector.query.execute('CREATE TABLE {0} {1};'.format(table_name, self._columns_clause__basic))
 
-    # def test__select__aggregates(self):
-    #     """"""
-    #     table_name = 'test_queries__select__aggregate'
-    #
-    #     # Run parent tests.
-    #     super().test__select__aggregates()
-    #
-    #     # Tests that require slightly different syntax in different database types.
-    #     with self.subTest('SELECT with BIT_OR aggregation'):
-    #         # Run test query.
-    #         results = self.connector.records.select(table_name, 'BIT_OR(test_bool::int)')
-    #
-    #         # Verify return aggregate result.
-    #         # No records returned True, so should be False.
-    #         self.assertEqual(len(results), 1)
-    #         self.assertEqual(results[0][0], False)
-    #
-    #         # Upset a single record to be true, and test again.
-    #         results = self.connector.records.update(table_name, 'test_bool = True', where_clause='WHERE id = 2')
-    #         results = self.connector.records.select(table_name, 'BIT_OR(test_bool::int)')
-    #
-    #         # Verify return aggregate result.
-    #         # At least one record returned True so should be True.
-    #         self.assertEqual(len(results), 1)
-    #         self.assertEqual(results[0][0], True)
-    #
-    #     with self.subTest('SELECT with BIT_AND aggregation'):
-    #         # Run test query.
-    #         results = self.connector.records.select(table_name, 'BIT_AND(test_bool::int)')
-    #
-    #         # Verify return aggregate result.
-    #         # Not all records returned True, so should be False.
-    #         self.assertEqual(len(results), 1)
-    #         self.assertEqual(results[0][0], False)
-    #
-    #         # Update all records to be true, and test again.
-    #         results = self.connector.records.update(table_name, 'test_bool = True', where_clause='')
-    #         results = self.connector.records.select(table_name, 'bit_or(test_bool::int)')
-    #
-    #         # Verify return aggregate result.
-    #         # All records returned True so should be True.
-    #         self.assertEqual(len(results), 1)
-    #         self.assertEqual(results[0][0], True)
-    #
-    #         # Reset booleans to be False.
-    #         self.connector.records.update(table_name, 'test_bool = False', where_clause='')
-    #
-    #     with self.subTest('SELECT with STDDEV aggregation'):
-    #         # Run test query.
-    #         results = self.connector.records.select(table_name, 'STDDEV(test_int)')
-    #
-    #         # Verify return aggregate result.
-    #         self.assertEqual(len(results), 1)
-    #         self.assertEqual(results[0][0], Decimal('7.4363969770312827'))
-    #
-    #     with self.subTest('SELECT with VARIANCE aggregation'):
-    #         # Run test query.
-    #         results = self.connector.records.select(table_name, 'VARIANCE(test_int)')
-    #
-    #         # Verify return aggregate result.
-    #         self.assertEqual(len(results), 1)
-    #         self.assertEqual(results[0][0], Decimal('55.3'))
-    #
-    #     # Aggregate functions that don't exist outside of PostgreSQL.
-    #     with self.subTest('SELECT with BOOL_OR aggregation'):
-    #         # Run test query.
-    #         results = self.connector.records.select(table_name, 'BOOL_OR(test_bool)')
-    #
-    #         # Verify return aggregate result.
-    #         # No records returned True, so should be False.
-    #         self.assertEqual(len(results), 1)
-    #         self.assertEqual(results[0][0], False)
-    #
-    #         # Upset a single record to be true, and test again.
-    #         results = self.connector.records.update(table_name, 'test_bool = True', where_clause='WHERE id = 2')
-    #         results = self.connector.records.select(table_name, 'BOOL_OR(test_bool)')
-    #
-    #         # Verify return aggregate result.
-    #         # At least one record returned True so should be True.
-    #         self.assertEqual(len(results), 1)
-    #         self.assertEqual(results[0][0], True)
-    #
-    #     with self.subTest('SELECT with BOOL_AND aggregation'):
-    #         # Run test query.
-    #         results = self.connector.records.select(table_name, 'BOOL_AND(test_bool)')
-    #
-    #         # Verify return aggregate result.
-    #         # Not all records returned True, so should be False.
-    #         self.assertEqual(len(results), 1)
-    #         self.assertEqual(results[0][0], False)
-    #
-    #         # Update all records to be true, and test again.
-    #         self.connector.records.update(table_name, 'test_bool = True', where_clause='')
-    #         results = self.connector.records.select(table_name, 'BOOL_or(test_bool)')
-    #
-    #         # Verify return aggregate result.
-    #         # All records returned True so should be True.
-    #         self.assertEqual(len(results), 1)
-    #         self.assertEqual(results[0][0], True)
-    #
-    #         # Reset booleans to be False.
-    #         self.connector.records.update(table_name, 'test_bool = False', where_clause='')
+    def test__select__aggregates(self):
+        """"""
+        table_name = 'test_queries__select__aggregate'
+
+        # Run parent tests.
+        super().test__select__aggregates()
+
+        # Tests that require slightly different syntax in different database types.
+        with self.subTest('SELECT with BIT_OR aggregation'):
+            # Run test query.
+            results = self.connector.records.select(table_name, 'BIT_OR(test_bool::int)')
+
+            # Verify return aggregate result.
+            # No records returned True, so should be False.
+            self.assertEqual(len(results), 1)
+            self.assertEqual(results[0][0], False)
+
+            # Upset a single record to be true, and test again.
+            results = self.connector.records.update(table_name, 'test_bool = True', where_clause='WHERE id = 2')
+            results = self.connector.records.select(table_name, 'BIT_OR(test_bool::int)')
+
+            # Verify return aggregate result.
+            # At least one record returned True so should be True.
+            self.assertEqual(len(results), 1)
+            self.assertEqual(results[0][0], True)
+
+        with self.subTest('SELECT with BIT_AND aggregation'):
+            # Run test query.
+            results = self.connector.records.select(table_name, 'BIT_AND(test_bool::int)')
+
+            # Verify return aggregate result.
+            # Not all records returned True, so should be False.
+            self.assertEqual(len(results), 1)
+            self.assertEqual(results[0][0], False)
+
+            # Update all records to be true, and test again.
+            results = self.connector.records.update(table_name, 'test_bool = True', where_clause='')
+            results = self.connector.records.select(table_name, 'bit_or(test_bool::int)')
+
+            # Verify return aggregate result.
+            # All records returned True so should be True.
+            self.assertEqual(len(results), 1)
+            self.assertEqual(results[0][0], True)
+
+            # Reset booleans to be False.
+            self.connector.records.update(table_name, 'test_bool = False', where_clause='')
+
+        with self.subTest('SELECT with STDDEV aggregation'):
+            # Run test query.
+            results = self.connector.records.select(table_name, 'STDDEV(test_int)')
+
+            # Verify return aggregate result.
+            self.assertEqual(len(results), 1)
+            self.assertEqual(results[0][0], Decimal('7.4363969770312827'))
+
+        with self.subTest('SELECT with VARIANCE aggregation'):
+            # Run test query.
+            results = self.connector.records.select(table_name, 'VARIANCE(test_int)')
+
+            # Verify return aggregate result.
+            self.assertEqual(len(results), 1)
+            self.assertEqual(results[0][0], Decimal('55.3'))
+
+        # Aggregate functions that don't exist outside of PostgreSQL.
+        with self.subTest('SELECT with BOOL_OR aggregation'):
+            # Run test query.
+            results = self.connector.records.select(table_name, 'BOOL_OR(test_bool)')
+
+            # Verify return aggregate result.
+            # No records returned True, so should be False.
+            self.assertEqual(len(results), 1)
+            self.assertEqual(results[0][0], False)
+
+            # Upset a single record to be true, and test again.
+            results = self.connector.records.update(table_name, 'test_bool = True', where_clause='WHERE id = 2')
+            results = self.connector.records.select(table_name, 'BOOL_OR(test_bool)')
+
+            # Verify return aggregate result.
+            # At least one record returned True so should be True.
+            self.assertEqual(len(results), 1)
+            self.assertEqual(results[0][0], True)
+
+        with self.subTest('SELECT with BOOL_AND aggregation'):
+            # Run test query.
+            results = self.connector.records.select(table_name, 'BOOL_AND(test_bool)')
+
+            # Verify return aggregate result.
+            # Not all records returned True, so should be False.
+            self.assertEqual(len(results), 1)
+            self.assertEqual(results[0][0], False)
+
+            # Update all records to be true, and test again.
+            self.connector.records.update(table_name, 'test_bool = True', where_clause='')
+            results = self.connector.records.select(table_name, 'BOOL_or(test_bool)')
+
+            # Verify return aggregate result.
+            # All records returned True so should be True.
+            self.assertEqual(len(results), 1)
+            self.assertEqual(results[0][0], True)
+
+            # Reset booleans to be False.
+            self.connector.records.update(table_name, 'test_bool = False', where_clause='')