SELECT 
  cscart_product_descriptions.product_id, 
  cscart_product_descriptions.meta_keywords, 
  cscart_product_descriptions.meta_description, 
  cscart_product_descriptions.search_words, 
  cscart_product_descriptions.promo_text 
FROM 
  cscart_product_descriptions 
WHERE 
  cscart_product_descriptions.product_id IN (
    21, 46, 48, 49, 50, 51, 53, 91, 92, 105, 
    129, 138, 139, 21567, 22712, 22713, 
    22714, 22715, 22716, 50989, 51081, 
    51082, 51083, 51085, 51086, 51087, 
    51088, 51089, 51090, 51091, 51092, 
    51093, 51095, 51096, 51097, 51098, 
    51099, 51100, 51101, 51102, 51103, 
    51105, 51121, 51122, 51123, 51125, 
    51126, 51127, 51128, 51129, 51152, 
    51153, 51154, 51155, 51156, 51157, 
    51158, 51159, 51160, 51172, 51173, 
    51174, 51176, 51296, 51297, 51298, 
    51299, 51300, 51301, 51302, 51303, 
    51304, 51305, 51306, 51307, 51308, 
    51309, 51316, 51317, 51318, 51319, 
    51320, 51321, 51322, 51323, 51324, 
    51370, 51371, 51372, 51373, 51443, 
    51452, 51453, 51496, 51497, 51498, 
    51564, 51565, 51566, 51567, 51568, 
    51569, 51570, 51571, 51572, 51573, 
    51574, 51575, 51576, 51577, 51578, 
    51579, 51580, 51581, 51582, 51583, 
    51584, 51585, 51586
  ) 
  AND cscart_product_descriptions.lang_code = 'ru'

Query time 0.00186

JSON explain

{
  "query_block": {
    "select_id": 1,
    "cost_info": {
      "query_cost": "83.31"
    },
    "table": {
      "table_name": "cscart_product_descriptions",
      "access_type": "range",
      "possible_keys": [
        "PRIMARY",
        "product_id"
      ],
      "key": "PRIMARY",
      "used_key_parts": [
        "product_id",
        "lang_code"
      ],
      "key_length": "9",
      "rows_examined_per_scan": 119,
      "rows_produced_per_join": 119,
      "filtered": "100.00",
      "index_condition": "((`test_uchur_k`.`cscart_product_descriptions`.`product_id` in (21,46,48,49,50,51,53,91,92,105,129,138,139,21567,22712,22713,22714,22715,22716,50989,51081,51082,51083,51085,51086,51087,51088,51089,51090,51091,51092,51093,51095,51096,51097,51098,51099,51100,51101,51102,51103,51105,51121,51122,51123,51125,51126,51127,51128,51129,51152,51153,51154,51155,51156,51157,51158,51159,51160,51172,51173,51174,51176,51296,51297,51298,51299,51300,51301,51302,51303,51304,51305,51306,51307,51308,51309,51316,51317,51318,51319,51320,51321,51322,51323,51324,51370,51371,51372,51373,51443,51452,51453,51496,51497,51498,51564,51565,51566,51567,51568,51569,51570,51571,51572,51573,51574,51575,51576,51577,51578,51579,51580,51581,51582,51583,51584,51585,51586)) and (`test_uchur_k`.`cscart_product_descriptions`.`lang_code` = 'ru'))",
      "cost_info": {
        "read_cost": "71.41",
        "eval_cost": "11.90",
        "prefix_cost": "83.31",
        "data_read_per_join": "542K"
      },
      "used_columns": [
        "product_id",
        "lang_code",
        "meta_keywords",
        "meta_description",
        "search_words",
        "promo_text"
      ]
    }
  }
}