>> Do you agree that using a hashtable for it in general is a good idea

>> assuming this sideeffect is removed, though?
>
>I have no problem with the hashtable, only with preloading it with
>everything.  What I'd like to see is that the table inherited at fork()
>contains just the data for the default timezone.  (At least in the
>normal case where that setting hasn't been changed since postmaster
>start.)

Here's a patch doing this. Changes score_timezone not to use pg_tzset(),
and thus not loading all the zones in the cache. The actual timezone
being picked will be set using set_global_timezone() which in turn calls
pg_tzset() and loads it in the cache.

Magnus Hagander

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