Fixing failing test caused by registry pollution.

Adding a test case to prove that unqualified column names work with postgresql.  Closes #930

cake/tests/cases/libs/model/datasources/dbo/dbo_postgres.test.php

@@ -477,7 +477,7 @@ function testCakeSchema() {
 			date date,
 			CONSTRAINT test_suite_data_types_pkey PRIMARY KEY (id)
 		)');
-		$model =& ClassRegistry::init('datatypes');
+		$model = new Model(array('name' => 'Datatype', 'ds' => 'test_suite'));
 		$schema = new CakeSchema(array('connection' => 'test_suite'));
 		$result = $schema->read(array(
 			'connection' => 'test_suite',
@@ -653,5 +653,22 @@ function testAlterIndexes() {
 
 		$this->db->query($this->db->dropSchema($schema1));
 	}
+
+/**
+ * test that saveAll works even with conditions that lack a model name.
+ *
+ * @return void
+ */
+	function testUpdateAllWithNonQualifiedConditions() {
+		$this->loadFixtures('Article');
+		$Article =& new Article();
+		$result = $Article->updateAll(array('title' => "'Awesome'"), array('published' => 'Y'));
+		$this->assertTrue($result);
+
+		$result = $Article->find('count', array(
+			'conditions' => array('Article.title' => 'Awesome')
+		));
+		$this->assertEqual($result, 3, 'Article count is wrong or fixture has changed.');
+	}
 }
 ?>