Fix for Postgresql PDO::FETCH_ASSOC

laravel/database/query.php

@@ -829,7 +829,9 @@ class Query {
 		}
 		else if ($this->grammar instanceof Postgres)
 		{
-			return (int) $result[0]->$column;
+			$row = (array) $result[0];
+			
+			return (int) $row[$column];
 		}
 		else
 		{