Skiping some test in model_write test when using postgres as there is…

… no way yet to do joins inside an update statement.

Possible enhancement would be transforming the join conditions into subquerys

cake/tests/cases/libs/model/model_write.test.php

@@ -3708,6 +3708,10 @@ function testFindAllForeignKey() {
  * @return void
  */
     function testProductUpdateAll() {
+		$this->skipIf(
+			$this->db->config['driver'] == 'postgres',
+			'%s Currently, there is no way of doing joins in an update statement in postgresql'
+		);
 		$this->loadFixtures('ProductUpdateAll', 'GroupUpdateAll');
 		$ProductUpdateAll =& new ProductUpdateAll();
 
@@ -3746,6 +3750,7 @@ function testProductUpdateAll() {
 
         $this->assertEqual($results, $expected);
     }
+
 /**
  * testProductUpdateAllWithoutForeignKey
  *
@@ -3754,6 +3759,10 @@ function testProductUpdateAll() {
  * @return void
  */
     function testProductUpdateAllWithoutForeignKey() {
+		$this->skipIf(
+			$this->db->config['driver'] == 'postgres',
+			'%s Currently, there is no way of doing joins in an update statement in postgresql'
+		);
 		$this->loadFixtures('ProductUpdateAll', 'GroupUpdateAll');
 		$ProductUpdateAll =& new ProductUpdateAll();