SELECT 
  tconnect_product_feature_variant_descriptions.variant, 
  tconnect_product_feature_variants.variant_id, 
  tconnect_product_feature_variants.feature_id, 
  tconnect_product_features_values.variant_id as selected, 
  tconnect_product_features.feature_type, 
  tconnect_seo_names.name as seo_name, 
  tconnect_seo_names.path as seo_path, 
  tconnect_product_feature_variants.color, 
  tconnect_product_features_values.value_int, 
  tconnect_product_feature_variants.abt__ut2_multicolor, 
  tconnect_product_feature_variants.abt__ut2_color_style 
FROM 
  tconnect_product_feature_variants 
  LEFT JOIN tconnect_product_feature_variant_descriptions ON tconnect_product_feature_variant_descriptions.variant_id = tconnect_product_feature_variants.variant_id 
  AND tconnect_product_feature_variant_descriptions.lang_code = 'en' 
  INNER JOIN tconnect_product_features_values ON tconnect_product_features_values.variant_id = tconnect_product_feature_variants.variant_id 
  AND tconnect_product_features_values.lang_code = 'en' 
  AND tconnect_product_features_values.product_id = 224 
  AND tconnect_product_features_values.feature_id = tconnect_product_feature_variants.feature_id 
  LEFT JOIN tconnect_product_features ON tconnect_product_features.feature_id = tconnect_product_feature_variants.feature_id 
  LEFT JOIN tconnect_seo_names ON tconnect_seo_names.object_id = tconnect_product_feature_variants.variant_id 
  AND tconnect_seo_names.type = 'e' 
  AND tconnect_seo_names.dispatch = '' 
  AND tconnect_seo_names.lang_code = 'en' 
WHERE 
  1 
  AND tconnect_product_feature_variants.feature_id IN (15, 16, 17) 
GROUP BY 
  tconnect_product_feature_variants.variant_id 
ORDER BY 
  tconnect_product_feature_variants.position, 
  tconnect_product_feature_variant_descriptions.variant

Query time 0.00282

JSON explain

{
  "query_block": {
    "select_id": 1,
    "cost": 0.015788664,
    "filesort": {
      "sort_key": "tconnect_product_feature_variants.position, tconnect_product_feature_variant_descriptions.variant",
      "temporary_table": {
        "nested_loop": [
          {
            "table": {
              "table_name": "tconnect_product_features_values",
              "access_type": "ref",
              "possible_keys": [
                "PRIMARY",
                "fl",
                "variant_id",
                "lang_code",
                "product_id",
                "fpl",
                "idx_product_feature_variant_id"
              ],
              "key": "product_id",
              "key_length": "3",
              "used_key_parts": ["product_id"],
              "ref": ["const"],
              "loops": 1,
              "rows": 3,
              "cost": 0.004492149,
              "filtered": 99.73190308,
              "attached_condition": "tconnect_product_features_values.product_id <=> 224 and tconnect_product_features_values.lang_code = 'en'"
            }
          },
          {
            "table": {
              "table_name": "tconnect_product_feature_variants",
              "access_type": "eq_ref",
              "possible_keys": ["PRIMARY", "feature_id"],
              "key": "PRIMARY",
              "key_length": "3",
              "used_key_parts": ["variant_id"],
              "ref": ["tconnect.tconnect_product_features_values.variant_id"],
              "loops": 2.991957105,
              "rows": 1,
              "cost": 0.005377972,
              "filtered": 19.23077011,
              "attached_condition": "tconnect_product_feature_variants.feature_id = tconnect_product_features_values.feature_id and tconnect_product_feature_variants.feature_id in (15,16,17)"
            }
          },
          {
            "table": {
              "table_name": "tconnect_product_features",
              "access_type": "eq_ref",
              "possible_keys": ["PRIMARY"],
              "key": "PRIMARY",
              "key_length": "3",
              "used_key_parts": ["feature_id"],
              "ref": ["tconnect.tconnect_product_features_values.feature_id"],
              "loops": 1,
              "rows": 1,
              "cost": 0.001933826,
              "filtered": 100
            }
          },
          {
            "table": {
              "table_name": "tconnect_product_feature_variant_descriptions",
              "access_type": "eq_ref",
              "possible_keys": ["PRIMARY"],
              "key": "PRIMARY",
              "key_length": "9",
              "used_key_parts": ["variant_id", "lang_code"],
              "ref": [
                "tconnect.tconnect_product_features_values.variant_id",
                "const"
              ],
              "loops": 1,
              "rows": 1,
              "cost": 0.001933826,
              "filtered": 100,
              "attached_condition": "trigcond(tconnect_product_feature_variant_descriptions.lang_code = 'en')"
            }
          },
          {
            "table": {
              "table_name": "tconnect_seo_names",
              "access_type": "ref",
              "possible_keys": ["PRIMARY", "dispatch"],
              "key": "PRIMARY",
              "key_length": "206",
              "used_key_parts": ["object_id", "type", "dispatch", "lang_code"],
              "ref": [
                "tconnect.tconnect_product_features_values.variant_id",
                "const",
                "const",
                "const"
              ],
              "loops": 1,
              "rows": 1,
              "cost": 0.002050891,
              "filtered": 100,
              "attached_condition": "trigcond(tconnect_seo_names.`type` = 'e' and tconnect_seo_names.dispatch = '' and tconnect_seo_names.lang_code = 'en')"
            }
          }
        ]
      }
    }
  }
}