Redis bitwise key

Question

I'm trying to implement some bitwise operation on keys in redis. I have to store let's say key value 12:CA foo 12:US bar 42:CA tag

And I'm trying to be able to query all with CA or all with 12 Is this even possible ?

Thanks

sberry · Accepted Answer · 2012-12-03 23:31:08Z

0

I may be mis-interpreting the question, but if you have key => values like

12:CA => foo
12:US => bar
42:CA => tag

And you want to pull all keys matching CA, or 12, then you can just use the keys operator along with a wildcard

keys *:CA
keys 12:*

NOTE This only returns the matching keys. To get the values, you need to use the returned keys.

answered Dec 3, 2012 at 23:31

sberry

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3 Comments

Kangt_qc Over a year ago

Oh really ?? I really didn't know I could use wildcard like that ! You truly made my day thanks !

sberry Over a year ago

Another note: Using the wildcard can be extremely slow. If your data model will allow it, and your number of keys will get large, you might want to consider using a Hash instead.

Kangt_qc Over a year ago

Yes I thought about this ... I'm gonna have a serious performance issue ... I'm gonna rechek my model but I'm pretty sure I'm gonna have a large set of data.

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