Set timezone on session

src/RedshiftConnector.php

@@ -36,7 +36,7 @@ public function createConnection($dsn, array $config, array $options)
         // is useful for automation tests that bypass the connection process.
 
         if (! empty($config['password'])) {
-            return parent::createConnection($dsn, $config, $options);
+            return $this->customConnection($dsn, $config, $options);
         }
 
         $execute = function (int $attempt) use ($dsn, $config, $options) {
@@ -52,11 +52,26 @@ public function createConnection($dsn, array $config, array $options)
 
             $config['password'] = $this->password->resolve($config['redshift']['secret'], $freshSecret);
 
-            return parent::createConnection($dsn, $config, $options);
+            return $this->customConnection($dsn, $config, $options);
         };
 
         $condition = fn (Exception $e) => $e instanceof PDOException && str_contains($e->getMessage(), 'Access denied for user');
 
         return retry(when: $condition, callback: $execute, times: 3);
     }
+
+    private function customConnection($dsn, array $config, array $options): \PDO
+    {
+        $connection = parent::createConnection($dsn, $config, $options);
+
+        $timezone = $config['timezone'] ?? null;
+
+        // Redshift does not support connect on timezone using DSN,
+        // only through SET timezone {timezone}
+        if ($timezone) {
+            $connection->exec("SET timezone TO $timezone");
+        }
+
+        return $connection;
+    }
 }