Sandbox

SELECT 
  ushop_ec_livecommerce_videos.*, 
  ushop_ec_livecommerce_videos_descriptions.video_title, 
  ushop_ec_livecommerce_videos_descriptions.description, 
  ushop_ec_livecommerce_videos_descriptions.lang_code 
FROM 
  ushop_ec_livecommerce_videos 
  LEFT JOIN ushop_ec_livecommerce_videos_descriptions ON ushop_ec_livecommerce_videos_descriptions.video_id = ushop_ec_livecommerce_videos.video_id 
  AND ushop_ec_livecommerce_videos_descriptions.lang_code = 'es' 
WHERE 
  1 
  AND ushop_ec_livecommerce_videos.storefront_id = 1 
  AND ushop_ec_livecommerce_videos.scheduled_time > 1771276470 
ORDER BY 
  ushop_ec_livecommerce_videos.scheduled_time desc 
LIMIT 
  0, 8

Query time 0.00142

JSON explain

{
  "query_block": {
    "select_id": 1,
    "message": "Impossible WHERE noticed after reading const tables"
  }
}