[DDC-2660] Fix error with NativeSQL, ResultSetMappingBuilder and Associations as Primary Key.

lib/Doctrine/ORM/Query/ResultSetMappingBuilder.php

@@ -168,7 +168,12 @@ class ResultSetMappingBuilder extends ResultSetMapping
                         throw new \InvalidArgumentException("The column '$columnAlias' conflicts with another column in the mapper.");
                     }
 
-                    $this->addMetaResult($alias, $columnAlias, $columnName);
+                    $this->addMetaResult(
+                        $alias,
+                        $columnAlias,
+                        $columnName,
+                        (isset($associationMapping['id']) && $associationMapping['id'] === true)
+                    );
                 }
             }
         }

tests/Doctrine/Tests/ORM/Functional/Ticket/DDC2660Test.php

@@ -0,0 +1,122 @@
+<?php
+
+namespace Doctrine\Tests\ORM\Functional\Ticket;
+
+use Doctrine\ORM\Query\ResultSetMappingBuilder;
+use Doctrine\Common\Collections\ArrayCollection;
+
+/**
+ * @group
+ */
+class DDC2660Test extends \Doctrine\Tests\OrmFunctionalTestCase
+{
+    /**
+     * {@inheritDoc}
+     */
+    protected function setup()
+    {
+        parent::setup();
+
+        try {
+            $this->_schemaTool->createSchema(array(
+                $this->_em->getClassMetadata(__NAMESPACE__ . '\DDC2660Product'),
+                $this->_em->getClassMetadata(__NAMESPACE__ . '\DDC2660Customer'),
+                $this->_em->getClassMetadata(__NAMESPACE__ . '\DDC2660CustomerOrder')
+            ));
+        } catch(\Exception $e) {
+            return;
+        }
+
+        for ($i = 0; $i < 5; $i++) {
+            $product = new DDC2660Product();
+            $customer = new DDC2660Customer();
+            $order = new DDC2660CustomerOrder($product, $customer, 'name' . $i);
+
+            $this->_em->persist($product);
+            $this->_em->persist($customer);
+            $this->_em->flush();
+
+            $this->_em->persist($order);
+            $this->_em->flush();
+        }
+
+        $this->_em->clear();
+    }
+
+    public function testIssueWithExtraColumn()
+    {
+        $sql = "SELECT o.product_id, o.customer_id, o.name FROM ddc_2660_customer_order o";
+
+        $rsm = new ResultSetMappingBuilder($this->_getEntityManager());
+        $rsm->addRootEntityFromClassMetadata(__NAMESPACE__ . '\DDC2660CustomerOrder', 'c');
+
+        $query  = $this->_em->createNativeQuery($sql, $rsm);
+        $result = $query->getResult();
+
+        $this->assertCount(5, $result);
+
+        foreach ($result as $order) {
+            $this->assertNotNull($order);
+            $this->assertInstanceOf(__NAMESPACE__ . '\\DDC2660CustomerOrder', $order);
+        }
+    }
+
+    public function testIssueWithoutExtraColumn()
+    {
+        $sql = "SELECT o.product_id, o.customer_id FROM ddc_2660_customer_order o";
+
+        $rsm = new ResultSetMappingBuilder($this->_getEntityManager());
+        $rsm->addRootEntityFromClassMetadata(__NAMESPACE__ . '\DDC2660CustomerOrder', 'c');
+
+        $query  = $this->_em->createNativeQuery($sql, $rsm);
+        $result = $query->getResult();
+
+        $this->assertCount(5, $result);
+
+        foreach ($result as $order) {
+            $this->assertNotNull($order);
+            $this->assertInstanceOf(__NAMESPACE__ . '\\DDC2660CustomerOrder', $order);
+        }
+    }
+}
+/**
+ * @Entity @Table(name="ddc_2660_product")
+ */
+class DDC2660Product
+{
+    /** @Id @Column(type="integer") @GeneratedValue */
+    public $id;
+}
+
+/** @Entity  @Table(name="ddc_2660_customer") */
+class DDC2660Customer
+{
+    /** @Id @Column(type="integer") @GeneratedValue */
+    public $id;
+}
+
+/** @Entity @Table(name="ddc_2660_customer_order") */
+class DDC2660CustomerOrder
+{
+    /**
+     * @Id @ManyToOne(targetEntity="DDC2660Product")
+     */
+    public $product;
+
+    /**
+     * @Id @ManyToOne(targetEntity="DDC2660Customer")
+     */
+    public $customer;
+
+    /**
+     * @Column(type="string")
+     */
+    public $name;
+
+    public function __construct(DDC2660Product $product, DDC2660Customer $customer, $name)
+    {
+        $this->product  = $product;
+        $this->customer = $customer;
+        $this->name = $name;
+    }
+}