SELECT 
  * 
FROM 
  jmj_product_feature_variants 
WHERE 
  variant_id IN (
    3246, 3247, 657, 637, 642, 647, 652, 660, 
    457, 1688, 1689, 1690, 1691, 1692, 2103, 
    2104, 2106, 2109, 2110, 2114, 2141, 
    2142, 2167, 2168, 2170, 2187, 2194, 
    2206, 766
  )

Query time 0.01102

JSON explain

{
  "query_block": {
    "select_id": 1,
    "cost_info": {
      "query_cost": "69.61"
    },
    "table": {
      "table_name": "jmj_product_feature_variants",
      "access_type": "range",
      "possible_keys": [
        "PRIMARY"
      ],
      "key": "PRIMARY",
      "used_key_parts": [
        "variant_id"
      ],
      "key_length": "3",
      "rows_examined_per_scan": 29,
      "rows_produced_per_join": 29,
      "filtered": "100.00",
      "index_condition": "(`jmj_test`.`jmj_product_feature_variants`.`variant_id` in (3246,3247,657,637,642,647,652,660,457,1688,1689,1690,1691,1692,2103,2104,2106,2109,2110,2114,2141,2142,2167,2168,2170,2187,2194,2206,766))",
      "cost_info": {
        "read_cost": "63.81",
        "eval_cost": "5.80",
        "prefix_cost": "69.61",
        "data_read_per_join": "44K"
      },
      "used_columns": [
        "variant_id",
        "feature_id",
        "url",
        "color",
        "position",
        "abt__ut2_color_style",
        "abt__ut2_multicolor"
      ]
    }
  }
}