Fix OFFSET without LIMIT cause MySQL syntax error.

lib/Doctrine/DBAL/Platforms/MySqlPlatform.php

@@ -44,6 +44,24 @@ class MySqlPlatform extends AbstractPlatform
     const LENGTH_LIMIT_BLOB       = 65535;
     const LENGTH_LIMIT_MEDIUMBLOB = 16777215;
 
+    /**
+     * Adds MySQL-specific LIMIT clause to the query
+     * 18446744073709551615 is 2^64-1 maximum of unsigned BIGINT the biggest limit possible
+     */
+    protected function doModifyLimitQuery($query, $limit, $offset)
+    {
+        if ($limit !== null) {
+            $query .= ' LIMIT ' . $limit;
+            if ($offset !== null) {
+                $query .= ' OFFSET ' . $offset;
+            }
+        } elseif ($offset !== null) {
+            $query .= ' LIMIT 18446744073709551615 OFFSET ' . $offset;
+        }
+
+        return $query;
+    }
+
     /**
      * {@inheritDoc}
      */

tests/Doctrine/Tests/DBAL/Platforms/MySqlPlatformTest.php

@@ -17,6 +17,12 @@ class MySqlPlatformTest extends AbstractPlatformTestCase
         return new MysqlPlatform;
     }
 
+    public function testModifyLimitQueryWitoutLimit()
+    {
+        $sql = $this->_platform->modifyLimitQuery('SELECT n FROM Foo', null , 10);
+        $this->assertEquals('SELECT n FROM Foo LIMIT 18446744073709551615 OFFSET 10',$sql);
+    }
+
     public function testGenerateMixedCaseTableCreate()
     {
         $table = new Table("Foo");