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From: "Josh Berkus" <josh@agliodbs.com>
Subject: Re: datediff?
To: Erwin Moller <erwin@dexus.nl>
Cc: pgsql-sql@postgresql.org
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Erwin,

> Thanks for your quick response Josh.
> 
> I wasn't aware of the Postgresql-function DATEDIFF()
> The accolade ' is not a problem of course!

Whoops!   Didn't want to confuse you.   What I meant was, a PgSQL
function "Datediff" could be easily *written*, except that it would
need quoted identifiers, different from the T-SQL function.   If anyone
on this list has written a DateDiff, please post!

> But I have to say to my shame, I was asking you too soon, because all
> I
> really needed was a function that could return me some absolute
> timediff,
> and I found date_part('epoch', date) does the trick nicely enough for
> me.
> I can now take the diff in millisecs since start of epoch, which is
> enough
> to do all other calculations easily.

Cool!   Glad that you found something that would work for you.

-Josh