SELECT 
  * 
FROM 
  jmj_product_feature_variants 
WHERE 
  variant_id IN (
    3231, 3246, 3247, 2103, 2107, 2112, 2113, 
    2114, 2115, 2116, 2118, 2122, 2123, 
    2127, 2133, 2135, 2136, 2137, 2141, 
    2143, 2144, 2150, 2151, 2153, 2155, 
    2176, 2180, 2181, 2182, 2183, 2194, 
    2196, 2197, 2201, 2203, 2204, 2205, 
    2207, 2208, 2209, 2210, 2211, 2212, 
    2213, 2214, 2222, 2224, 2229, 766
  )

Query time 0.01067

JSON explain

{
  "query_block": {
    "select_id": 1,
    "cost_info": {
      "query_cost": "117.61"
    },
    "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": 49,
      "rows_produced_per_join": 49,
      "filtered": "100.00",
      "index_condition": "(`jmj_test`.`jmj_product_feature_variants`.`variant_id` in (3231,3246,3247,2103,2107,2112,2113,2114,2115,2116,2118,2122,2123,2127,2133,2135,2136,2137,2141,2143,2144,2150,2151,2153,2155,2176,2180,2181,2182,2183,2194,2196,2197,2201,2203,2204,2205,2207,2208,2209,2210,2211,2212,2213,2214,2222,2224,2229,766))",
      "cost_info": {
        "read_cost": "107.81",
        "eval_cost": "9.80",
        "prefix_cost": "117.61",
        "data_read_per_join": "75K"
      },
      "used_columns": [
        "variant_id",
        "feature_id",
        "url",
        "color",
        "position",
        "abt__ut2_color_style",
        "abt__ut2_multicolor"
      ]
    }
  }
}