With a million keys, you should go for the database.

If you only need hash lookups (as opposed to all the query stuff you can do with a relational database), you could give BerkeleyDB a try, which even ships with Perl (as the DB_File module). Instead of using a query language to manipulate data, it pretends to be a Perl hash.

In reply to Re: How to remove duplicates from a large set of keys by Thilosophy
in thread How to remove duplicates from a large set of keys by nite_man

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