SELECT 
  cscart_seo_names.object_id AS product_id, 
  cscart_seo_names.name AS seo_name, 
  cscart_seo_names.path AS seo_path 
FROM 
  cscart_seo_names 
WHERE 
  cscart_seo_names.object_id IN (
    366791, 366688, 366729, 366724, 366746, 
    366786, 366783, 366726, 366739, 366737, 
    366787, 366795, 366788, 366894, 366685
  ) 
  AND cscart_seo_names.type = "p" 
  AND cscart_seo_names.dispatch = "" 
  AND cscart_seo_names.lang_code = 'en'

Query time 0.00075

JSON explain

{
  "query_block": {
    "select_id": 1,
    "cost_info": {
      "query_cost": "21.02"
    },
    "table": {
      "table_name": "cscart_seo_names",
      "access_type": "range",
      "possible_keys": [
        "PRIMARY",
        "dispatch"
      ],
      "key": "PRIMARY",
      "used_key_parts": [
        "object_id",
        "type",
        "dispatch",
        "lang_code"
      ],
      "key_length": "206",
      "rows_examined_per_scan": 15,
      "rows_produced_per_join": 15,
      "filtered": "100.00",
      "cost_info": {
        "read_cost": "18.03",
        "eval_cost": "3.00",
        "prefix_cost": "21.03",
        "data_read_per_join": "25K"
      },
      "used_columns": [
        "name",
        "object_id",
        "type",
        "dispatch",
        "path",
        "lang_code"
      ],
      "attached_condition": "((`webmarco`.`cscart_seo_names`.`object_id` in (366791,366688,366729,366724,366746,366786,366783,366726,366739,366737,366787,366795,366788,366894,366685)) and (`webmarco`.`cscart_seo_names`.`type` = 'p') and (`webmarco`.`cscart_seo_names`.`dispatch` = '') and (`webmarco`.`cscart_seo_names`.`lang_code` = 'en'))"
    }
  }
}