SELECT 
  cscart_products_categories.product_id, 
  GROUP_CONCAT(
    IF(
      cscart_products_categories.link_type = "M", 
      CONCAT(
        cscart_products_categories.category_id, 
        "M"
      ), 
      cscart_products_categories.category_id
    )
  ) AS category_ids, 
  product_position_source.position AS position 
FROM 
  cscart_products_categories 
  INNER JOIN cscart_categories ON cscart_categories.category_id = cscart_products_categories.category_id 
  AND cscart_categories.storefront_id IN (0, 1) 
  AND (
    cscart_categories.usergroup_ids = '' 
    OR FIND_IN_SET(
      0, cscart_categories.usergroup_ids
    ) 
    OR FIND_IN_SET(
      1, cscart_categories.usergroup_ids
    )
  ) 
  AND cscart_categories.status IN ('A', 'H') 
  LEFT JOIN cscart_products_categories AS product_position_source ON cscart_products_categories.product_id = product_position_source.product_id 
  AND product_position_source.category_id = 7192 
WHERE 
  cscart_products_categories.product_id IN (
    93190, 93191, 93192, 93193, 93194, 93195, 
    93196, 93197, 93198, 93199, 93200, 
    93201, 93202, 93203, 93204, 93205, 
    93206, 93207, 93208, 93209, 93210, 
    93211, 93212, 93213, 93214, 93215, 
    93216, 93217, 93218, 93219, 93220, 
    93221, 93222, 93223, 93224, 93225, 
    93226, 93227, 93228, 93229, 93230, 
    93231, 93232, 93233, 93234, 93235, 
    93236, 93237, 93238, 93239, 93240, 
    93241, 93242, 93243, 93244, 93245, 
    93246, 93247, 93248, 93249, 93250, 
    93251, 93252, 93253, 93254, 93255, 
    93256, 93257, 93258, 93259, 93260, 
    93261, 93262, 93263, 93264, 93265, 
    93266, 93267, 93268, 93269, 93270, 
    93271, 93272, 93273, 93274, 93275, 
    93276, 93277, 93278, 93279, 93362, 
    93363, 93364, 93365, 93366, 93367
  ) 
GROUP BY 
  cscart_products_categories.product_id

Query time 0.00223

JSON explain

{
  "query_block": {
    "select_id": 1,
    "cost_info": {
      "query_cost": "54.77"
    },
    "grouping_operation": {
      "using_filesort": false,
      "nested_loop": [
        {
          "table": {
            "table_name": "cscart_products_categories",
            "access_type": "range",
            "possible_keys": [
              "PRIMARY",
              "link_type",
              "pt"
            ],
            "key": "pt",
            "used_key_parts": [
              "product_id"
            ],
            "key_length": "3",
            "rows_examined_per_scan": 96,
            "rows_produced_per_join": 96,
            "filtered": "100.00",
            "using_index": true,
            "cost_info": {
              "read_cost": "9.89",
              "eval_cost": "9.60",
              "prefix_cost": "19.49",
              "data_read_per_join": "1K"
            },
            "used_columns": [
              "product_id",
              "category_id",
              "link_type"
            ],
            "attached_condition": "(`nuie_scalesta_net`.`cscart_products_categories`.`product_id` in (93190,93191,93192,93193,93194,93195,93196,93197,93198,93199,93200,93201,93202,93203,93204,93205,93206,93207,93208,93209,93210,93211,93212,93213,93214,93215,93216,93217,93218,93219,93220,93221,93222,93223,93224,93225,93226,93227,93228,93229,93230,93231,93232,93233,93234,93235,93236,93237,93238,93239,93240,93241,93242,93243,93244,93245,93246,93247,93248,93249,93250,93251,93252,93253,93254,93255,93256,93257,93258,93259,93260,93261,93262,93263,93264,93265,93266,93267,93268,93269,93270,93271,93272,93273,93274,93275,93276,93277,93278,93279,93362,93363,93364,93365,93366,93367))"
          }
        },
        {
          "table": {
            "table_name": "cscart_categories",
            "access_type": "eq_ref",
            "possible_keys": [
              "PRIMARY",
              "c_status",
              "p_category_id"
            ],
            "key": "PRIMARY",
            "used_key_parts": [
              "category_id"
            ],
            "key_length": "3",
            "ref": [
              "nuie_scalesta_net.cscart_products_categories.category_id"
            ],
            "rows_examined_per_scan": 1,
            "rows_produced_per_join": 4,
            "filtered": "5.00",
            "cost_info": {
              "read_cost": "24.00",
              "eval_cost": "0.48",
              "prefix_cost": "53.09",
              "data_read_per_join": "12K"
            },
            "used_columns": [
              "category_id",
              "usergroup_ids",
              "status",
              "storefront_id"
            ],
            "attached_condition": "((`nuie_scalesta_net`.`cscart_categories`.`storefront_id` in (0,1)) and ((`nuie_scalesta_net`.`cscart_categories`.`usergroup_ids` = '') or (0 <> find_in_set(0,`nuie_scalesta_net`.`cscart_categories`.`usergroup_ids`)) or (0 <> find_in_set(1,`nuie_scalesta_net`.`cscart_categories`.`usergroup_ids`))) and (`nuie_scalesta_net`.`cscart_categories`.`status` in ('A','H')))"
          }
        },
        {
          "table": {
            "table_name": "product_position_source",
            "access_type": "eq_ref",
            "possible_keys": [
              "PRIMARY",
              "pt"
            ],
            "key": "PRIMARY",
            "used_key_parts": [
              "category_id",
              "product_id"
            ],
            "key_length": "6",
            "ref": [
              "const",
              "nuie_scalesta_net.cscart_products_categories.product_id"
            ],
            "rows_examined_per_scan": 1,
            "rows_produced_per_join": 4,
            "filtered": "100.00",
            "cost_info": {
              "read_cost": "1.20",
              "eval_cost": "0.48",
              "prefix_cost": "54.77",
              "data_read_per_join": "76"
            },
            "used_columns": [
              "product_id",
              "category_id",
              "position"
            ]
          }
        }
      ]
    }
  }
}