SELECT 
  * 
FROM 
  jmj_product_feature_variants 
WHERE 
  variant_id IN (
    3232, 3246, 3247, 2103, 2104, 2105, 2106, 
    2107, 2108, 2109, 2111, 2112, 2113, 
    2114, 2115, 2116, 2128, 2129, 2130, 
    2131, 2135, 2136, 2139, 2140, 2142, 
    2143, 2148, 2154, 2163, 2165, 2166, 
    2167, 2168, 2169, 2170, 2174, 2178, 
    2179, 2180, 2181, 2183, 2184, 2185, 
    2186, 2187, 2188, 2190, 2192, 2194, 
    2195, 2196, 2201, 2204, 2205, 2207, 
    2213, 2219, 2221, 2222, 2223, 2228, 
    2231, 2232, 2233, 2235, 2237, 2239, 
    3238, 766
  )

Query time 0.00089

JSON explain

{
  "query_block": {
    "select_id": 1,
    "cost_info": {
      "query_cost": "165.61"
    },
    "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": 69,
      "rows_produced_per_join": 69,
      "filtered": "100.00",
      "index_condition": "(`jmj_test`.`jmj_product_feature_variants`.`variant_id` in (3232,3246,3247,2103,2104,2105,2106,2107,2108,2109,2111,2112,2113,2114,2115,2116,2128,2129,2130,2131,2135,2136,2139,2140,2142,2143,2148,2154,2163,2165,2166,2167,2168,2169,2170,2174,2178,2179,2180,2181,2183,2184,2185,2186,2187,2188,2190,2192,2194,2195,2196,2201,2204,2205,2207,2213,2219,2221,2222,2223,2228,2231,2232,2233,2235,2237,2239,3238,766))",
      "cost_info": {
        "read_cost": "151.81",
        "eval_cost": "13.80",
        "prefix_cost": "165.61",
        "data_read_per_join": "106K"
      },
      "used_columns": [
        "variant_id",
        "feature_id",
        "url",
        "color",
        "position",
        "abt__ut2_color_style",
        "abt__ut2_multicolor"
      ]
    }
  }
}