diff --git a/lib/Doctrine/ORM/Internal/Hydration/ScalarColumnHydrator.php b/lib/Doctrine/ORM/Internal/Hydration/ScalarColumnHydrator.php
index 393799c0e4a..abd205969ec 100644
--- a/lib/Doctrine/ORM/Internal/Hydration/ScalarColumnHydrator.php
+++ b/lib/Doctrine/ORM/Internal/Hydration/ScalarColumnHydrator.php
@@ -7,6 +7,7 @@
 use Doctrine\DBAL\Driver\Exception;
 use Doctrine\ORM\Exception\MultipleSelectorsFoundException;
 
+use function array_column;
 use function count;
 
 /**
@@ -26,12 +27,8 @@ protected function hydrateAllData(): array
             throw MultipleSelectorsFoundException::create($this->resultSetMapping()->fieldMappings);
         }
 
-        $result = [];
+        $result = $this->statement()->fetchAllNumeric();
 
-        while ($row = $this->statement()->fetchOne()) {
-            $result[] = $row;
-        }
-
-        return $result;
+        return array_column($result, 0);
     }
 }
diff --git a/tests/Doctrine/Tests/Mocks/DriverResultMock.php b/tests/Doctrine/Tests/Mocks/DriverResultMock.php
index 4c283a43f10..b37eb44e9aa 100644
--- a/tests/Doctrine/Tests/Mocks/DriverResultMock.php
+++ b/tests/Doctrine/Tests/Mocks/DriverResultMock.php
@@ -64,7 +64,12 @@ public function fetchOne()
 
     public function fetchAllNumeric(): array
     {
-        throw new BadMethodCallException('Not implemented');
+        $values = [];
+        while (($row = $this->fetchNumeric()) !== false) {
+            $values[] = $row;
+        }
+
+        return $values;
     }
 
     public function fetchAllAssociative(): array
diff --git a/tests/Doctrine/Tests/ORM/Functional/Ticket/GH9230Test.php b/tests/Doctrine/Tests/ORM/Functional/Ticket/GH9230Test.php
new file mode 100644
index 00000000000..8dfeb663289
--- /dev/null
+++ b/tests/Doctrine/Tests/ORM/Functional/Ticket/GH9230Test.php
@@ -0,0 +1,173 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Doctrine\Tests\ORM\Functional\Ticket;
+
+use Doctrine\ORM\Mapping\Column;
+use Doctrine\ORM\Mapping\Entity;
+use Doctrine\ORM\Mapping\GeneratedValue;
+use Doctrine\ORM\Mapping\Id;
+use Doctrine\Tests\OrmFunctionalTestCase;
+
+/**
+ * @group GH-9230
+ */
+class GH9230Test extends OrmFunctionalTestCase
+{
+    protected function setUp(): void
+    {
+        parent::setUp();
+
+        // ensure entity table exists
+        $this->setUpEntitySchema([GH9230Entity::class]);
+    }
+
+    protected function tearDown(): void
+    {
+        parent::tearDown();
+
+        $connection = static::$sharedConn;
+        if ($connection === null) {
+            return;
+        }
+
+        // remove persisted entities
+        $connection->executeStatement('DELETE FROM GH9230Entity');
+    }
+
+    /**
+     * This does not work before the fix in PR#9663, but is does work after the fix is applied
+     */
+    public function failingValuesBeforeFix(): array
+    {
+        return [
+            'string=""' => ['name', '', 'test name'],
+            'string="0"' => ['name', '0', 'test name'],
+            'string=null' => ['name', null, 'test name'],
+
+            'int=0' => ['counter', 0, 1],
+            'int=null' => ['counter', null, 1],
+
+            'bool=false' => ['enabled', false, true],
+            'bool=null' => ['enabled', null, true],
+
+            'float=0.0' => ['price', 0.0, 1.1],
+            'float=-0.0' => ['price', -0.0, 1.1],
+            'float=null' => ['price', null, 1.1],
+
+            'json=[]' => ['extra', [], 1],
+            'json=0' => ['extra', 0, 1],
+            'json=0.0' => ['extra', 0.0, 1],
+            'json=false' => ['extra', false, 1],
+            'json=""' => ['extra', '', 1, ['""', '1']],
+            'json=null' => ['enabled', null, 1],
+        ];
+    }
+
+    /**
+     * This already works before the fix in PR#9663 is applied because none of these are falsy values in php
+     */
+    public function succeedingValuesBeforeFix(): array
+    {
+        return [
+            'string="test"' => ['name', 'test', 'test2'],
+            'int=1' => ['counter', 1, 1],
+            'bool=true' => ['enabled', true, 1],
+            'json=[null]' => ['extra', [null], 1],
+            'json=1' => ['extra', 1, 1],
+            'json=1.1' => ['extra', 1.1, 1],
+            'json=true' => ['extra', true, 1],
+            'json="test"' => ['extra', 'test', 'test'],
+            'json="1"' => ['extra', '1', 1],
+        ];
+    }
+
+    /**
+     * @dataProvider failingValuesBeforeFix
+     * @dataProvider succeedingValuesBeforeFix
+     */
+    public function testIssue(string $property, $falsyValue, $truthyValue): void
+    {
+        $counter1            = new GH9230Entity();
+        $counter1->$property = $falsyValue;
+
+        $counter2            = new GH9230Entity();
+        $counter2->$property = $truthyValue;
+
+        $this->_em->persist($counter1);
+        $this->_em->persist($counter2);
+        $this->_em->flush();
+
+        $this->_em->clear();
+
+        $persistedCounter1 = $this->_em->find(GH9230Entity::class, $counter1->id);
+        $persistedCounter2 = $this->_em->find(GH9230Entity::class, $counter2->id);
+
+        // Assert entities were persisted
+        self::assertInstanceOf(GH9230Entity::class, $persistedCounter1);
+        self::assertInstanceOf(GH9230Entity::class, $persistedCounter2);
+        self::assertEquals($falsyValue, $persistedCounter1->$property);
+        self::assertEquals($truthyValue, $persistedCounter2->$property);
+
+        $this->_em->clear();
+
+        $counterRepository = $this->_em->getRepository(GH9230Entity::class);
+
+        $query = $counterRepository->createQueryBuilder('counter')
+            ->select('counter.' . $property)
+            ->getQuery();
+
+        $values = $query->getSingleColumnResult();
+
+        // Assert that there are 2 values returned.
+        // This fails when there is a falsy value in the array,
+        // because the first falsy value halts the hydration process (before the fix is applied).
+        self::assertCount(2, $values);
+    }
+}
+
+
+/**
+ * @Entity
+ */
+class GH9230Entity
+{
+    /**
+     * @var int
+     * @Column(name="id", type="integer")
+     * @Id
+     * @GeneratedValue(strategy="AUTO")
+     */
+    public $id;
+
+    /**
+     * @var ?string
+     * @Column(name="name", type="string", nullable=true)
+     */
+    public $name;
+
+    /**
+     * @var ?int
+     * @Column(name="counter", type="integer", nullable=true)
+     */
+    public $counter;
+
+    /**
+     * @var ?bool
+     * @Column(name="enabled", type="boolean", nullable=true)
+     */
+    public $enabled;
+
+    /**
+     * @var ?float
+     * @Column(name="price", type="decimal", scale=1, precision=2, nullable=true)
+     */
+    public $price;
+
+    /**
+     * @var mixed[]
+     * @Column(name="extra", type="json", nullable=true)
+     */
+    public $extra;
+}