A lot of the inefficiency in Date::Manip (in re-parsing) could be eliminated by caching the results in seconds; e.g. using  Date_SecsSince1970GMT to create a hash mapping message ID's to dates in seconds. This lets Date::Manip do the "magic" of normalizing various date formats and TZ's into an "universal" format, but the actual sort & search would now be against a list of (large) integers.

In reply to Re: (tye)Re: Date comparisons + Benchmark by baku
in thread Date comparisons by cajun

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