SELECT 
  cscart_promotions.*, 
  cscart_promotion_descriptions.name, 
  cscart_promotion_descriptions.detailed_description, 
  cscart_promotion_descriptions.short_description, 
  pb.bundle_id 
FROM 
  cscart_promotions 
  LEFT JOIN cscart_promotion_descriptions ON cscart_promotion_descriptions.promotion_id = cscart_promotions.promotion_id 
  AND cscart_promotion_descriptions.lang_code = 'en' 
  LEFT JOIN cscart_storefronts_promotions AS storefronts_promotions ON storefronts_promotions.promotion_id = cscart_promotions.promotion_id 
  LEFT JOIN cscart_product_bundles pb ON pb.linked_promotion_id = cscart_promotions.promotion_id 
WHERE 
  1 
  AND IF(
    from_date, from_date <= 1750132904, 
    1
  ) 
  AND IF(to_date, to_date >= 1750132904, 1) 
  AND cscart_promotions.status IN ('A') 
  AND cscart_promotions.zone = 'cart' 
  AND (
    storefronts_promotions.storefront_id = 1 
    OR storefronts_promotions.storefront_id IS NULL
  ) 
  AND cscart_promotions.company_id = 0 
  AND pb.bundle_id IS NULL 
ORDER BY 
  cscart_promotions.priority asc

Query time 0.00246

JSON explain

{
  "query_block": {
    "select_id": 1,
    "filesort": {
      "sort_key": "cscart_promotions.priority",
      "temporary_table": {
        "nested_loop": [
          {
            "table": {
              "table_name": "storefronts_promotions",
              "access_type": "system",
              "possible_keys": ["PRIMARY", "idx_storefront_id"],
              "rows": 0,
              "filtered": 0,
              "const_row_not_found": true
            }
          },
          {
            "table": {
              "table_name": "cscart_promotions",
              "access_type": "ALL",
              "rows": 22,
              "filtered": 100,
              "attached_condition": "cscart_promotions.company_id = 0 and if(cscart_promotions.from_date,cscart_promotions.from_date <= 1750132904,1) and if(cscart_promotions.to_date,cscart_promotions.to_date >= 1750132904,1) and cscart_promotions.`status` = 'A' and cscart_promotions.zone = 'cart'"
            }
          },
          {
            "table": {
              "table_name": "cscart_promotion_descriptions",
              "access_type": "eq_ref",
              "possible_keys": ["PRIMARY"],
              "key": "PRIMARY",
              "key_length": "9",
              "used_key_parts": ["promotion_id", "lang_code"],
              "ref": ["dev_db.cscart_promotions.promotion_id", "const"],
              "rows": 1,
              "filtered": 100,
              "attached_condition": "trigcond(cscart_promotion_descriptions.lang_code = 'en')"
            }
          },
          {
            "block-nl-join": {
              "table": {
                "table_name": "pb",
                "access_type": "ALL",
                "rows": 15,
                "filtered": 100,
                "not_exists": true
              },
              "buffer_type": "flat",
              "buffer_size": "70Kb",
              "join_type": "BNL",
              "attached_condition": "trigcond(pb.bundle_id is null) and trigcond(pb.linked_promotion_id = cscart_promotions.promotion_id)"
            }
          }
        ]
      }
    }
  }
}