Hi monks!

I have a problem with finding dublicated values in the big set of keys. So, let's imagine. I have the set of values. It's about 1 million. In real time I should check does a new value exist in my set and if not to add it.

One way is to use a hash. But it takes a lot of time when number of values is increased.

Other way is store values into a database and make unique index by values. So, when a new value is coming I can try to insert it into a table and catch exceptions.

I'd like to hear your opinions and suggestions about it.

TIA

---
Michael Stepanov aka nite_man

It's only my opinion and it doesn't have pretensions of absoluteness!

Retitled by davido from 'Finding duplicated values'.

In reply to How to remove duplicates from a large set of keys by nite_man

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