SELECT 
  video_id, 
  product_id 
FROM 
  q_ab__video_gallery 
WHERE 
  product_id IN (
    656, 657, 658, 659, 660, 661, 662, 663, 
    664, 665, 666, 667, 668, 669, 670, 671, 
    672, 673, 636, 637, 638, 639, 640, 641, 
    642, 643, 644, 645, 646, 647
  )

Query time 0.00049

JSON explain

{
  "query_block": {
    "select_id": 1,
    "cost_info": {
      "query_cost": "5.80"
    },
    "table": {
      "table_name": "q_ab__video_gallery",
      "access_type": "index",
      "possible_keys": [
        "product_id"
      ],
      "key": "product_id",
      "used_key_parts": [
        "product_id"
      ],
      "key_length": "3",
      "rows_examined_per_scan": 24,
      "rows_produced_per_join": 24,
      "filtered": "100.00",
      "using_index": true,
      "cost_info": {
        "read_cost": "1.00",
        "eval_cost": "4.80",
        "prefix_cost": "5.80",
        "data_read_per_join": "1K"
      },
      "used_columns": [
        "video_id",
        "product_id"
      ],
      "attached_condition": "(`portal`.`q_ab__video_gallery`.`product_id` in (656,657,658,659,660,661,662,663,664,665,666,667,668,669,670,671,672,673,636,637,638,639,640,641,642,643,644,645,646,647))"
    }
  }
}