text: insert into items(item_handle,item_name,item_desc,price,ratings) values
  ( '81d9bb8b-ae94-4067-8c82-f18e2a1cf3dd','a boot','a single boot.','$15.99','3/5'),
  ( '152825d2-26ea-4a15-a659-a5f052624ed1','fancy boot','a fancier boot, looks nice.','$300.00','4/5'),
  ( '8fe7ce9d-4e98-4dd7-8495-c191d278a862', 'old boot', 'its an old ugly boot.', '$20.99', '2/5'), 
  ( '5d9e1220-f1d9-49ed-9322-15a8189b1603', 'small boot', 'its a small boot, too small for you.', '$4.99', '5/5')
  
  on conflict do nothing