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From: Tom Lane <tgl@sss.pgh.pa.us>
To: Heikki Linnakangas <heikki.linnakangas@enterprisedb.com>
Cc: David Jarvis <thangalin@gmail.com>
Cc: pgsql-performance@postgresql.org, Magnus Hagander <magnus@hagander.net>
Subject: Re: Analysis Function
Date: Sun, 13 Jun 2010 11:34:20 -0400
Message-ID: <13998.1276443260@sss.pgh.pa.us> (raw)
In-Reply-To: <4C14746F.9050603@enterprisedb.com>
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Heikki Linnakangas <heikki.linnakangas@enterprisedb.com> writes:
> We could have a function like:

> construct_timestamp(year int4, month int4, date int4, hour int4, minute 
> int4, second int4, milliseconds int4, timezone text)

This fails to allow specification to the microsecond level (and note
that with float timestamps even smaller fractions have potential use).
I would suggest dropping the milliseconds argument and instead letting
the seconds arg be float8.  That seems a closer match to the way people
think about the textual representation.

> Now that we have named parameter notation, callers can use it to 
> conveniently fill in only the fields needed:

It's not immediately obvious what the default value of "timezone"
will be?

			regards, tom lane



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