SELECT 
  * 
FROM 
  jmj_product_feature_variants 
WHERE 
  variant_id IN (
    3230, 3246, 3247, 3161, 3162, 3164, 3166, 
    3168, 3170, 3172, 3176, 3177, 3178, 
    3180, 3182, 3181, 3184, 3185, 3188, 
    3190, 3194, 3200, 3201, 3203, 3204, 
    3205, 3207, 3208, 3212, 3214, 3216, 
    2103, 2104, 2105, 2108, 2111, 2112, 
    2113, 2114, 2115, 2116, 2117, 2125, 
    2126, 2127, 2148, 2153, 2162, 2179, 
    2182, 2185, 2191, 2192, 766
  )

Query time 0.01089

JSON explain

{
  "query_block": {
    "select_id": 1,
    "cost_info": {
      "query_cost": "129.61"
    },
    "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": 54,
      "rows_produced_per_join": 54,
      "filtered": "100.00",
      "index_condition": "(`jmj_test`.`jmj_product_feature_variants`.`variant_id` in (3230,3246,3247,3161,3162,3164,3166,3168,3170,3172,3176,3177,3178,3180,3182,3181,3184,3185,3188,3190,3194,3200,3201,3203,3204,3205,3207,3208,3212,3214,3216,2103,2104,2105,2108,2111,2112,2113,2114,2115,2116,2117,2125,2126,2127,2148,2153,2162,2179,2182,2185,2191,2192,766))",
      "cost_info": {
        "read_cost": "118.81",
        "eval_cost": "10.80",
        "prefix_cost": "129.61",
        "data_read_per_join": "83K"
      },
      "used_columns": [
        "variant_id",
        "feature_id",
        "url",
        "color",
        "position",
        "abt__ut2_color_style",
        "abt__ut2_multicolor"
      ]
    }
  }
}