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 (
    51194, 51193, 51192, 51191, 51190, 51189, 
    19, 51201, 51200, 51199, 51198, 51197, 
    51196, 51195, 131, 111, 51212, 144, 
    51215, 51214, 51213, 51444, 51445, 
    51446, 51447, 51220, 51219, 51218, 
    51217, 51216, 146, 51448, 51449, 51231, 
    51230, 51229, 51228, 51227, 51226, 
    51225, 109, 51272, 51271, 51270, 51269, 
    51268, 51267, 51266, 145, 9, 59, 60, 
    14, 13, 127, 51325, 63, 50984, 51450, 
    51451, 51329, 51328, 51327, 50985, 
    51331, 51330, 50986, 51332, 51339, 
    51338, 51337, 51336, 50988, 113, 51346, 
    118, 84, 51347, 85, 6, 61, 51350, 123, 
    15, 95, 136, 50992, 51374, 51375, 42, 
    51376, 51377, 51378, 51379, 51380, 
    50993, 51381, 51382, 134
  ) 
  AND cscart_product_descriptions.lang_code = 'ru'

Query time 0.00135

JSON explain

{
  "query_block": {
    "select_id": 1,
    "cost_info": {
      "query_cost": "69.31"
    },
    "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": 99,
      "rows_produced_per_join": 99,
      "filtered": "100.00",
      "index_condition": "((`test_uchur_k`.`cscart_product_descriptions`.`product_id` in (51194,51193,51192,51191,51190,51189,19,51201,51200,51199,51198,51197,51196,51195,131,111,51212,144,51215,51214,51213,51444,51445,51446,51447,51220,51219,51218,51217,51216,146,51448,51449,51231,51230,51229,51228,51227,51226,51225,109,51272,51271,51270,51269,51268,51267,51266,145,9,59,60,14,13,127,51325,63,50984,51450,51451,51329,51328,51327,50985,51331,51330,50986,51332,51339,51338,51337,51336,50988,113,51346,118,84,51347,85,6,61,51350,123,15,95,136,50992,51374,51375,42,51376,51377,51378,51379,51380,50993,51381,51382,134)) and (`test_uchur_k`.`cscart_product_descriptions`.`lang_code` = 'ru'))",
      "cost_info": {
        "read_cost": "59.41",
        "eval_cost": "9.90",
        "prefix_cost": "69.31",
        "data_read_per_join": "451K"
      },
      "used_columns": [
        "product_id",
        "lang_code",
        "meta_keywords",
        "meta_description",
        "search_words",
        "promo_text"
      ]
    }
  }
}