Well, if you can't do queries in O(1) time, you can't do deletes in O(1) time (because to delete something, you first need to find it), and you can only do inserts in O(1) if you accept duplicates - which Perl hashes don't.

Abigail

In reply to Re: A short meditation about hash search performance by Abigail-II
in thread A short meditation about hash search performance by pg

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