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 (
    349645, 349646, 349647, 349648, 349649, 
    349650, 349651, 349652
  ) 
  AND cscart_seo_names.type = "p" 
  AND cscart_seo_names.dispatch = "" 
  AND cscart_seo_names.lang_code = 'en'

Query time 0.00049

JSON explain

{
  "query_block": {
    "select_id": 1,
    "cost_info": {
      "query_cost": "11.22"
    },
    "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": 8,
      "rows_produced_per_join": 8,
      "filtered": "100.00",
      "cost_info": {
        "read_cost": "9.62",
        "eval_cost": "1.60",
        "prefix_cost": "11.22",
        "data_read_per_join": "13K"
      },
      "used_columns": [
        "name",
        "object_id",
        "type",
        "dispatch",
        "path",
        "lang_code"
      ],
      "attached_condition": "((`webmarco`.`cscart_seo_names`.`object_id` in (349645,349646,349647,349648,349649,349650,349651,349652)) and (`webmarco`.`cscart_seo_names`.`type` = 'p') and (`webmarco`.`cscart_seo_names`.`dispatch` = '') and (`webmarco`.`cscart_seo_names`.`lang_code` = 'en'))"
    }
  }
}

Result

product_id seo_name seo_path
349645 hhe-pomello-qto-ass-0-35cm-hi-784-800-en 2910/2916
349646 hhe-pomello-tdo-ass-0-40cm-hi-961-980-en 2910/2916
349647 hhe-pomello-pic.tdo-ass-0-30-hh-41-60-en 2910/2916
349648 hhe-pomello-tdo-ass-0-40cm-hi-761-780-en 2910/2916
349649 hhe-pomello-tdo-ass-0-40cm-hf-41-60-en 2910/2916
349650 hhe-pomello-tdo-ass-0-38cm-hi-101-120-en 2910/2916
349651 hhe-pomello-t.damuri-ass-0-38cm-hi-td-en 2910/2916
349652 hhe-pomello-terra-e-sole-as-0-38cm-hi-ts-en 2910/2916