SELECT 
  * 
FROM 
  cscart_csc_filter_by_categories 
WHERE 
  1 
  AND cscart_csc_filter_by_categories.company_id = 0

Query time 0.00030

JSON explain

{
  "query_block": {
    "select_id": 1,
    "cost_info": {
      "query_cost": "0.45"
    },
    "table": {
      "table_name": "cscart_csc_filter_by_categories",
      "access_type": "ALL",
      "rows_examined_per_scan": 2,
      "rows_produced_per_join": 1,
      "filtered": "50.00",
      "cost_info": {
        "read_cost": "0.35",
        "eval_cost": "0.10",
        "prefix_cost": "0.45",
        "data_read_per_join": "1K"
      },
      "used_columns": [
        "name",
        "company_id",
        "value"
      ],
      "attached_condition": "(`cscart_db`.`cscart_csc_filter_by_categories`.`company_id` = 0)"
    }
  }
}