SELECT 
  company_id 
FROM 
  tmall_companies 
WHERE 
  1 
  AND company = 'CS-Cart'

Query time 0.00996

JSON explain

{
  "query_block": {
    "select_id": 1,
    "cost": 0.01034841,
    "nested_loop": [
      {
        "table": {
          "table_name": "tmall_companies",
          "access_type": "ALL",
          "loops": 1,
          "rows": 2,
          "cost": 0.01034841,
          "filtered": 100,
          "attached_condition": "tmall_companies.company = 'CS-Cart'"
        }
      }
    ]
  }
}