Просмотренные товары
select st1+st2+st3+st4+st5 as count 0 as stor from catalog_params where idt=13342 limit 1
select st1+st2+st3+st4+st5 as count 0 as stor from catalog_params where idt=19539 limit 1
select st1+st2+st3+st4+st5 as count 0 as stor from catalog_params where idt=19539 limit 1