'yii\db\Connection',
        //'dsn' => 'mysql:host=localhost;dbname=localdb',
        'dsn' => 'pgsql:host=*.ru;port=5432;dbname=DB_*',
        'username' => '*',
        'password' => '*',
        'charset' => 'utf8',
        'schemaMap' => [
            'pgsql' => [
                'class' => 'yii\db\pgsql\Schema',
                'defaultSchema' => 'yii2', //specify your schema here
            ]
        ],
        'on afterOpen' => function ($event)
        {
            $event->sender->createCommand("SET search_path TO yii2")->execute();
        }
    ];