From: | Peter Geoghegan <peter(dot)geoghegan86(at)gmail(dot)com> |
---|---|
To: | rod(at)iol(dot)ie |
Cc: | iepug(at)postgresql(dot)org |
Subject: | Re: What's new? |
Date: | 2010-01-30 00:31:41 |
Message-ID: | db471ace1001291631r57dcfaa2sad95bc1f79475f78@mail.gmail.com |
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Lists: | iepug |
Hi Ray,
> Not a whole lot here.... we've recovered from Christmas, floods and ice!
> Lovely weather here in the west, for once.
The cold spell certainly was a major inconvenience for me too.
>> Did you get a chance to play with window functions and (recursive) CTEs Raymond?
>
> I had a play with the query Greg Stark produced that generates the
> Mandelbrot set - really cool! Haven't needed to look at window functions
> yet, but keeping them in the back of my mind as a tool.
Wasn't that David Fetter? You might be surprised at the broad
applicability of CTEs (recursive CTEs not so much) - I was. They've
sprung up a lot in my production code. I was able to use a recursive
CTE very effectively to populate a graph of historic stock quantities
day-by-day, working backwards from the authoritative current qty in
stock - doing this without recursive CTEs would have been very
difficult. They make complex queries more manageable too.
> How's life in Kildare?
Pretty good, thanks.
> By the way, I (finally today) sent in the second shot at registering
> postgresql.ie - the letter is attached in case anyone's interested -
> let's see what happens this time.
Great. The .ie registrar is *way* too conservative.
Regards,
Peter Geoghegan
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