SELECT 
  promotions.*, 
  promotion_descriptions.name, 
  promotion_descriptions.detailed_description, 
  promotion_descriptions.short_description 
FROM 
  promotions 
  LEFT JOIN promotion_descriptions ON promotion_descriptions.promotion_id = promotions.promotion_id 
  AND promotion_descriptions.lang_code = 'en' 
  LEFT JOIN storefronts_promotions AS storefronts_promotions ON storefronts_promotions.promotion_id = promotions.promotion_id 
WHERE 
  1 
  AND IF(
    from_date, from_date <= 1755727737, 
    1
  ) 
  AND IF(to_date, to_date >= 1755727737, 1) 
  AND status IN ('A', 'H') 
  AND promotions.zone = 'catalog' 
  AND (
    storefronts_promotions.storefront_id = 1 
    OR storefronts_promotions.storefront_id IS NULL
  ) 
ORDER BY 
  promotions.stop_other_rules desc, 
  promotions.priority asc

Query time 0.00320

JSON explain

{
  "query_block": {
    "select_id": 1,
    "cost_info": {
      "query_cost": "530.44"
    },
    "ordering_operation": {
      "using_temporary_table": true,
      "using_filesort": true,
      "cost_info": {
        "sort_cost": "159.00"
      },
      "nested_loop": [
        {
          "table": {
            "table_name": "promotions",
            "access_type": "ALL",
            "rows_examined_per_scan": 1590,
            "rows_produced_per_join": 159,
            "filtered": "10.00",
            "cost_info": {
              "read_cost": "171.03",
              "eval_cost": "15.90",
              "prefix_cost": "186.93",
              "data_read_per_join": "12K"
            },
            "used_columns": [
              "promotion_id",
              "company_id",
              "conditions",
              "bonuses",
              "to_date",
              "from_date",
              "priority",
              "stop",
              "zone",
              "conditions_hash",
              "status",
              "number_of_usages",
              "users_conditions_hash",
              "stop_other_rules"
            ],
            "attached_condition": "((0 <> if(`goimagine`.`promotions`.`from_date`,(`goimagine`.`promotions`.`from_date` <= 1755727737),1)) and (0 <> if(`goimagine`.`promotions`.`to_date`,(`goimagine`.`promotions`.`to_date` >= 1755727737),1)) and (`goimagine`.`promotions`.`status` in ('A','H')) and (`goimagine`.`promotions`.`zone` = 'catalog'))"
          }
        },
        {
          "table": {
            "table_name": "promotion_descriptions",
            "access_type": "eq_ref",
            "possible_keys": [
              "PRIMARY"
            ],
            "key": "PRIMARY",
            "used_key_parts": [
              "promotion_id",
              "lang_code"
            ],
            "key_length": "9",
            "ref": [
              "goimagine.promotions.promotion_id",
              "const"
            ],
            "rows_examined_per_scan": 1,
            "rows_produced_per_join": 159,
            "filtered": "100.00",
            "cost_info": {
              "read_cost": "150.48",
              "eval_cost": "15.90",
              "prefix_cost": "353.32",
              "data_read_per_join": "124K"
            },
            "used_columns": [
              "promotion_id",
              "name",
              "short_description",
              "detailed_description",
              "lang_code"
            ]
          }
        },
        {
          "table": {
            "table_name": "storefronts_promotions",
            "access_type": "index",
            "key": "idx_storefront_id",
            "used_key_parts": [
              "storefront_id"
            ],
            "key_length": "4",
            "rows_examined_per_scan": 1,
            "rows_produced_per_join": 159,
            "filtered": "100.00",
            "using_index": true,
            "using_join_buffer": "hash join",
            "cost_info": {
              "read_cost": "2.22",
              "eval_cost": "15.90",
              "prefix_cost": "371.44",
              "data_read_per_join": "2K"
            },
            "used_columns": [
              "storefront_id",
              "promotion_id"
            ],
            "attached_condition": "(<if>(found_match(storefronts_promotions), ((`goimagine`.`storefronts_promotions`.`storefront_id` = 1) or (`goimagine`.`storefronts_promotions`.`storefront_id` is null)), true) and <if>(is_not_null_compl(storefronts_promotions), (`goimagine`.`storefronts_promotions`.`promotion_id` = `goimagine`.`promotions`.`promotion_id`), true))"
          }
        }
      ]
    }
  }
}

Result

promotion_id company_id conditions bonuses to_date from_date priority stop zone conditions_hash status number_of_usages users_conditions_hash stop_other_rules name detailed_description short_description
2491 139 a:3:{s:3:"set";s:3:"all";s:9:"set_value";s:1:"1";s:10:"conditions";a:2:{i:1;a:3:{s:8:"operator";s:2:"in";s:9:"condition";s:8:"products";s:5:"value";s:3:"781";}i:2;a:3:{s:8:"operator";s:2:"in";s:9:"condition";s:14:"ss_prom_vendor";s:5:"value";s:3:"139";}}} a:1:{i:1;a:3:{s:5:"bonus";s:16:"product_discount";s:14:"discount_bonus";s:13:"by_percentage";s:14:"discount_value";s:2:"40";}} 0 0 0 N catalog products=781;ss_prom_vendor=139 A 0 N Testing SD-450 from CS-Cart <p>Testing SD-450 from CS-Cart</p> <p>Testing SD-450 from CS-Cart</p>
2532 2 a:3:{s:3:"set";s:3:"all";s:9:"set_value";s:1:"1";s:10:"conditions";a:1:{i:2;a:3:{s:8:"operator";s:2:"in";s:9:"condition";s:14:"ss_prom_vendor";s:5:"value";s:1:"2";}}} a:1:{i:1;a:3:{s:5:"bonus";s:16:"product_discount";s:14:"discount_bonus";s:13:"by_percentage";s:14:"discount_value";s:2:"20";}} 1759204799 1725076800 0 N catalog ss_prom_vendor=2 A 6 N 20% Off Sale