I am designing a data model and am using a concatenation of three attributes as the row key, ordered respectively: date (hour grain) & app_name & client_uuid.
When doing queries or grabbing data for MapReduce jobs, I would like query by date, or possibly by date & app_name. client_uuid is there more for uniqueness and distribution of the hashing. Is there a way to handle this situation? Say, search by 'date & *' or search by 'date & app_name & *'.
Thanks in advance for the help!