mysql - 如何在 Laravel/Lumen 查询生成器中使用 mySQL convert_tz 函数

Question

$result['tests'] = Test::select('test.test_id',
    DB::raw('convert_tz(test.updated_at,+00:00,-05:30) as updated_at'),
    'test.created_at')
    ->orderBy('test.test_id', 'ASC')
    ->get()->toArray();

我已经找到了CASE WHEN查询的解决方案，例如 DB::raw('(CASE WHEN favorite.is_favorite IS NULL THEN 0 ELSE favorite.is_favorite END) AS is_favorite'),

但问题是我不能对值在引号内的CONVERT_TZ做同样的事情。

DB::raw('convert_tz(test.updated_at,+00:00,-05:30) as updated_at')