SELECT 
  * 
FROM 
  jmj_product_feature_variants 
WHERE 
  variant_id IN (
    3152, 3246, 3247, 714, 722, 727, 730, 
    731, 735, 738, 741, 742, 744, 746, 747, 
    3157, 1688, 1689, 1690, 1691, 1692, 
    1693, 1701, 1703, 1704, 2103, 2105, 
    2106, 2107, 2108, 2109, 2110, 2112, 
    2113, 2115, 2116, 2117, 2136, 2148, 
    2149, 2163, 2190, 2217, 3238, 766
  )

Query time 0.01117

JSON explain

{
  "query_block": {
    "select_id": 1,
    "cost_info": {
      "query_cost": "108.01"
    },
    "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": 45,
      "rows_produced_per_join": 45,
      "filtered": "100.00",
      "index_condition": "(`jmj_test`.`jmj_product_feature_variants`.`variant_id` in (3152,3246,3247,714,722,727,730,731,735,738,741,742,744,746,747,3157,1688,1689,1690,1691,1692,1693,1701,1703,1704,2103,2105,2106,2107,2108,2109,2110,2112,2113,2115,2116,2117,2136,2148,2149,2163,2190,2217,3238,766))",
      "cost_info": {
        "read_cost": "99.01",
        "eval_cost": "9.00",
        "prefix_cost": "108.01",
        "data_read_per_join": "69K"
      },
      "used_columns": [
        "variant_id",
        "feature_id",
        "url",
        "color",
        "position",
        "abt__ut2_color_style",
        "abt__ut2_multicolor"
      ]
    }
  }
}