SELECT 
  * 
FROM 
  cscart_ec_live_search_general_settings 
WHERE 
  storefront_id = 0

Query time 0.00038

JSON explain

{
  "query_block": {
    "select_id": 1,
    "cost_info": {
      "query_cost": "1.00"
    },
    "table": {
      "table_name": "cscart_ec_live_search_general_settings",
      "access_type": "system",
      "rows_examined_per_scan": 1,
      "rows_produced_per_join": 1,
      "filtered": "100.00",
      "cost_info": {
        "read_cost": "0.00",
        "eval_cost": "0.20",
        "prefix_cost": "0.00",
        "data_read_per_join": "1K"
      },
      "used_columns": [
        "id",
        "storefront_id",
        "min_input_search",
        "items_per_page",
        "page_per_search",
        "categories_show_count",
        "ec_navigate_keyboard",
        "load_more",
        "ec_search_product_code",
        "ec_product_price",
        "ec_product_categories",
        "ec_live_search_add_to_cart",
        "ec_live_search_quick_view",
        "ec_live_search_wish_list",
        "ec_live_search_compare",
        "search_categories",
        "include_product_search_categories",
        "ec_boost_search",
        "ec_sub_categories",
        "ec_product_keywords",
        "ec_product_name",
        "ec_product_full",
        "ec_product_short",
        "search_blogs",
        "search_pages",
        "page_name",
        "page_description",
        "sub_pages",
        "ec_predictive_search",
        "ec_predictive_search_only",
        "ec_predictive_limit",
        "ec_predictive_min_length",
        "ec_keyword_expiry_days",
        "ec_trending_keyword_threshold",
        "cron_key"
      ]
    }
  }
}