SELECT 
  cscart_june_setupproducts_categories.product_id, 
  GROUP_CONCAT(
    IF(
      cscart_june_setupproducts_categories.link_type = "M", 
      CONCAT(
        cscart_june_setupproducts_categories.category_id, 
        "M"
      ), 
      cscart_june_setupproducts_categories.category_id
    )
  ) AS category_ids 
FROM 
  cscart_june_setupproducts_categories 
  INNER JOIN cscart_june_setupcategories ON cscart_june_setupcategories.category_id = cscart_june_setupproducts_categories.category_id 
  AND cscart_june_setupcategories.storefront_id IN (0, 1) 
  AND (
    cscart_june_setupcategories.usergroup_ids = '' 
    OR FIND_IN_SET(
      0, cscart_june_setupcategories.usergroup_ids
    ) 
    OR FIND_IN_SET(
      1, cscart_june_setupcategories.usergroup_ids
    )
  ) 
  AND cscart_june_setupcategories.status IN ('A', 'H') 
WHERE 
  cscart_june_setupproducts_categories.product_id IN (
    12, 17, 148, 180, 187, 232, 230, 231, 18, 
    16, 4, 5, 23, 24, 170, 1, 22, 149, 227, 
    78, 79, 190, 189, 162, 159, 158, 245, 
    238, 239, 242, 243, 241
  ) 
GROUP BY 
  cscart_june_setupproducts_categories.product_id

Query time 0.00094

JSON explain

{
  "query_block": {
    "select_id": 1,
    "cost_info": {
      "query_cost": "31.37"
    },
    "grouping_operation": {
      "using_temporary_table": true,
      "using_filesort": true,
      "cost_info": {
        "sort_cost": "0.83"
      },
      "nested_loop": [
        {
          "table": {
            "table_name": "cscart_june_setupcategories",
            "access_type": "ALL",
            "possible_keys": [
              "PRIMARY",
              "c_status",
              "p_category_id"
            ],
            "rows_examined_per_scan": 84,
            "rows_produced_per_join": 3,
            "filtered": "4.00",
            "cost_info": {
              "read_cost": "19.53",
              "eval_cost": "0.67",
              "prefix_cost": "20.20",
              "data_read_per_join": "8K"
            },
            "used_columns": [
              "category_id",
              "storefront_id",
              "usergroup_ids",
              "status"
            ],
            "attached_condition": "((`vishalecarter_june_setup`.`cscart_june_setupcategories`.`storefront_id` in (0,1)) and ((`vishalecarter_june_setup`.`cscart_june_setupcategories`.`usergroup_ids` = '') or find_in_set(0,`vishalecarter_june_setup`.`cscart_june_setupcategories`.`usergroup_ids`) or find_in_set(1,`vishalecarter_june_setup`.`cscart_june_setupcategories`.`usergroup_ids`)) and (`vishalecarter_june_setup`.`cscart_june_setupcategories`.`status` in ('A','H')))"
          }
        },
        {
          "table": {
            "table_name": "cscart_june_setupproducts_categories",
            "access_type": "ref",
            "possible_keys": [
              "PRIMARY",
              "pt"
            ],
            "key": "PRIMARY",
            "used_key_parts": [
              "category_id"
            ],
            "key_length": "3",
            "ref": [
              "vishalecarter_june_setup.cscart_june_setupcategories.category_id"
            ],
            "rows_examined_per_scan": 2,
            "rows_produced_per_join": 0,
            "filtered": "12.31",
            "index_condition": "(`vishalecarter_june_setup`.`cscart_june_setupproducts_categories`.`product_id` in (12,17,148,180,187,232,230,231,18,16,4,5,23,24,170,1,22,149,227,78,79,190,189,162,159,158,245,238,239,242,243,241))",
            "cost_info": {
              "read_cost": "9.00",
              "eval_cost": "0.17",
              "prefix_cost": "30.55",
              "data_read_per_join": "13"
            },
            "used_columns": [
              "product_id",
              "category_id",
              "link_type"
            ]
          }
        }
      ]
    }
  }
}