Maybe you can build a index-table, like
rowkey:[USER_ID/ProductID] = { rk => main-table's rowkey}
when view a product, check Index, find the rk, use the rk to get row from
Main-talbe. delete this row, modify index-talbe's rk.
of cause, use coprocessor to handle this may make it simple...
2012/2/9 Mark <static.void....@gmail.com>
> We would like to maintain a history of all product views by a given user.
> We are currently using a row key like USER_ID_ID/TIMESTAMP. This works
> however we would like to maintain a unique list of these users to product
> views.
>
> So if i have rows like:
>
> mark/1328731167014262 = { data => 'Product 123' }
> mark/1328731162502304 = { data => 'Product 456' }
> mark/1328731157711375 = { data => 'Product 789' }
>
> And I view Product 789 again I want it to be like:
>
> mark/1328731292355173 = { data => 'Product 789' }
> mark/1328731167014262 = { data => 'Product 123' }
> mark/1328731162502304 = { data => 'Product 456' }
>
> So it basically replaces the old value. How can this be accomplished?
>
> Thanks
>
