SELECT 
  conditions 
FROM 
  cscart_promotions 
WHERE 
  status = 'A' 
  AND zone = 'catalog'

Query time 0.00013

JSON explain

{
  "query_block": {
    "select_id": 1,
    "table": {
      "table_name": "cscart_promotions",
      "access_type": "ALL",
      "rows": 5,
      "filtered": 100,
      "attached_condition": "cscart_promotions.`status` = 'A' and cscart_promotions.zone = 'catalog'"
    }
  }
}