SELECT 
  * 
FROM 
  jmj_product_feature_variants 
WHERE 
  variant_id IN (
    3246, 3247, 2103, 2105, 2106, 2107, 2108, 
    2109, 2112, 2117, 2120, 2126, 2130, 
    2133, 2134, 2135, 2136, 2138, 2139, 
    2140, 2162, 2163, 2164, 2166, 2168, 
    2169, 2173, 2182, 2190, 2191, 2192, 
    2193, 2194, 2208, 2210, 2211, 2215, 
    2219, 2220, 2221, 2222, 2224, 2225, 
    2229, 766
  )

Query time 0.01104

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 (3246,3247,2103,2105,2106,2107,2108,2109,2112,2117,2120,2126,2130,2133,2134,2135,2136,2138,2139,2140,2162,2163,2164,2166,2168,2169,2173,2182,2190,2191,2192,2193,2194,2208,2210,2211,2215,2219,2220,2221,2222,2224,2225,2229,766))",
      "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"
      ]
    }
  }
}