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SELECT 
  a.variant_id, 
  a.option_id, 
  a.position, 
  a.modifier, 
  a.modifier_type, 
  a.weight_modifier, 
  a.weight_modifier_type, 
  a.point_modifier, 
  a.point_modifier_type, 
  b.variant_name, 
  IF(
    shared_option_variants.variant_id IS NOT NULL, 
    shared_option_variants.modifier, 
    a.modifier
  ) as modifier, 
  IF(
    shared_option_variants.variant_id IS NOT NULL, 
    shared_option_variants.modifier_type, 
    a.modifier_type
  ) as modifier_type 
FROM 
  cscart_product_option_variants as a 
  LEFT JOIN cscart_product_option_variants_descriptions as b ON a.variant_id = b.variant_id 
  AND b.lang_code = 'de' 
  LEFT JOIN cscart_ult_product_option_variants shared_option_variants ON shared_option_variants.variant_id = a.variant_id 
  AND shared_option_variants.company_id = 1 
WHERE 
  a.option_id IN (
    1500, 1551, 1602, 1710, 1741, 1772, 1498, 
    1549, 1600, 128, 129, 1508, 1559, 1610, 
    1832, 1848, 1864, 1799, 1815, 1831, 
    1479, 1530, 1581, 1644, 1665, 1686, 
    1415, 1444, 1473, 1694, 1725, 1756
  ) 
  AND a.status = 'A' 
ORDER BY 
  a.position, 
  a.variant_id

Query time 0.00097

JSON explain

{
  "query_block": {
    "select_id": 1,
    "cost_info": {
      "query_cost": "143.81"
    },
    "ordering_operation": {
      "using_filesort": true,
      "cost_info": {
        "sort_cost": "43.00"
      },
      "nested_loop": [
        {
          "table": {
            "table_name": "shared_option_variants",
            "access_type": "system",
            "possible_keys": [
              "PRIMARY",
              "company_id"
            ],
            "rows_examined_per_scan": 0,
            "rows_produced_per_join": 1,
            "filtered": "0.00",
            "const_row_not_found": true,
            "cost_info": {
              "read_cost": "0.00",
              "eval_cost": "0.20",
              "prefix_cost": "0.00",
              "data_read_per_join": "24"
            },
            "used_columns": [
              "variant_id",
              "company_id",
              "modifier",
              "modifier_type"
            ]
          }
        },
        {
          "table": {
            "table_name": "a",
            "access_type": "range",
            "possible_keys": [
              "status",
              "option_id",
              "option_id_2"
            ],
            "key": "option_id",
            "used_key_parts": [
              "option_id",
              "status"
            ],
            "key_length": "6",
            "rows_examined_per_scan": 43,
            "rows_produced_per_join": 43,
            "filtered": "100.00",
            "index_condition": "((`eshopuga_upgr_4122`.`a`.`option_id` in (1500,1551,1602,1710,1741,1772,1498,1549,1600,128,129,1508,1559,1610,1832,1848,1864,1799,1815,1831,1479,1530,1581,1644,1665,1686,1415,1444,1473,1694,1725,1756)) and (`eshopuga_upgr_4122`.`a`.`status` = 'A'))",
            "cost_info": {
              "read_cost": "83.61",
              "eval_cost": "8.60",
              "prefix_cost": "92.21",
              "data_read_per_join": "2K"
            },
            "used_columns": [
              "variant_id",
              "option_id",
              "position",
              "modifier",
              "modifier_type",
              "weight_modifier",
              "weight_modifier_type",
              "point_modifier",
              "point_modifier_type",
              "status"
            ]
          }
        },
        {
          "table": {
            "table_name": "b",
            "access_type": "eq_ref",
            "possible_keys": [
              "PRIMARY"
            ],
            "key": "PRIMARY",
            "used_key_parts": [
              "variant_id",
              "lang_code"
            ],
            "key_length": "9",
            "ref": [
              "eshopuga_upgr_4122.a.variant_id",
              "const"
            ],
            "rows_examined_per_scan": 1,
            "rows_produced_per_join": 43,
            "filtered": "100.00",
            "cost_info": {
              "read_cost": "0.00",
              "eval_cost": "8.60",
              "prefix_cost": "100.81",
              "data_read_per_join": "32K"
            },
            "used_columns": [
              "variant_id",
              "lang_code",
              "variant_name"
            ]
          }
        }
      ]
    }
  }
}

Result

variant_id	option_id	position	modifier	modifier_type	weight_modifier_type	point_modifier_type
484	128	0	0.000	A	A	A
486	129	0	0.000	A	A	A
1594	1444	0	0.000	A	A	A
1606	1530	0	0.000	A	A	A
1644	1549	0	0.000	A	A	A
1648	1551	0	0.000	A	A	A
1664	1559	0	0.000	A	A	A
1732	1665	0	0.000	A	A	A
1748	1725	0	0.000	A	A	A
1780	1741	0	0.000	A	A	A
1834	1815	0	0.000	A	A	A
1836	1848	0	0.000	A	A	A
483	128	1	1.510	A	A	A
485	129	1	4.820	A	A	A
1593	1444	1	2.000	A	A	A
1605	1530	1	2.000	A	A	A
1643	1549	1	2.000	A	A	A
1647	1551	1	2.000	A	A	A
1663	1559	1	2.000	A	A	A
1731	1665	1	2.000	A	A	A
1747	1725	1	2.000	A	A	A
1779	1741	1	2.000	A	A	A
1833	1815	1	2.000	A	A	A
1835	1848	1	2.000	A	A	A