SELECT 
  * 
FROM 
  jmj_product_feature_variants 
WHERE 
  variant_id IN (
    3233, 2831, 2835, 2837, 2838, 2839, 2841, 
    2845, 2850, 2851, 2852, 2854, 2853, 
    2848, 2849, 2855, 2856, 2857, 2859, 
    2860, 2862, 2864, 2865, 2876, 2878, 
    2881, 2882, 2883, 2885, 2886, 2867, 
    2871, 2873, 1688, 1689, 1690, 1691, 
    2103, 2105, 2106, 2107, 2112, 2126, 
    2127, 2143, 2145, 2148, 2153, 2154, 
    2185, 2195, 2207, 2208, 766
  )

Query time 0.02031

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 (3233,2831,2835,2837,2838,2839,2841,2845,2850,2851,2852,2854,2853,2848,2849,2855,2856,2857,2859,2860,2862,2864,2865,2876,2878,2881,2882,2883,2885,2886,2867,2871,2873,1688,1689,1690,1691,2103,2105,2106,2107,2112,2126,2127,2143,2145,2148,2153,2154,2185,2195,2207,2208,766))",
      "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"
      ]
    }
  }
}