Issue #2350461 by mradcliffe, chx, David_Rothstein: Fixed issues with...

Issue #2350461 by mradcliffe, chx, David_Rothstein: Fixed issues with UpdateComplexTest in PostgreSQL driver.

core/lib/Drupal/Core/Database/Driver/pgsql/Update.php

@@ -9,6 +9,7 @@
 
 use Drupal\Core\Database\Database;
 use Drupal\Core\Database\Query\Update as QueryUpdate;
+use Drupal\Core\Database\Query\SelectInterface;
 
 class Update extends QueryUpdate {
 
@@ -36,6 +37,13 @@ public function execute() {
           $stmt->bindParam($placeholder, $data['arguments'][$placeholder]);
         }
       }
+      if ($data['expression'] instanceof SelectInterface) {
+        $data['expression']->compile($this->connection, $this);
+        $select_query_arguments = $data['expression']->arguments();
+        foreach ($select_query_arguments as $placeholder => $argument) {
+          $stmt->bindParam($placeholder, $select_query_arguments[$placeholder]);
+        }
+      }
       unset($fields[$field]);
     }