Flatten nested join

            supabase
            .from('playground')
            .select(`
                photos:playground_photos(
                    photo(*)
                ),
            `).eq('id', playgroundId)
            .single()

{
  photos: [
    {
      photo: {...}
    },
    {
      photo: {...}
    }
  ]
}

{
  photos: [
    {
      ...
    },
    {
      ...
    }
  ]
}