SELECT 
  cp_prompt, 
  cp_placeholder, 
  cp_maxlength, 
  cp_in_symbols, 
  cp_in_numbers, 
  cp_in_lowercase, 
  cp_in_uppercase, 
  cp_valid_alphabet, 
  cp_class 
FROM 
  ushop_form_descriptions 
WHERE 
  object_id = 13 
  AND lang_code = 'es'

Query time 0.00200

JSON explain

{
  "query_block": {
    "select_id": 1,
    "cost_info": {
      "query_cost": "1.00"
    },
    "table": {
      "table_name": "ushop_form_descriptions",
      "access_type": "const",
      "possible_keys": [
        "PRIMARY"
      ],
      "key": "PRIMARY",
      "used_key_parts": [
        "object_id",
        "lang_code"
      ],
      "key_length": "9",
      "ref": [
        "const",
        "const"
      ],
      "rows_examined_per_scan": 1,
      "rows_produced_per_join": 1,
      "filtered": "100.00",
      "cost_info": {
        "read_cost": "0.00",
        "eval_cost": "0.10",
        "prefix_cost": "0.00",
        "data_read_per_join": "2K"
      },
      "used_columns": [
        "object_id",
        "lang_code",
        "cp_valid_alphabet",
        "cp_in_symbols",
        "cp_in_numbers",
        "cp_in_lowercase",
        "cp_in_uppercase",
        "cp_maxlength",
        "cp_placeholder",
        "cp_class",
        "cp_prompt"
      ]
    }
  }
}