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From: Michael Glaesemann <[email protected]>
To: Tom Lane <[email protected]>
Cc: postgresql sql list <[email protected]>
Cc: Jeff Williams <[email protected]>
Subject: Re: Update timestamp on update
Date: Thu, 13 Oct 2005 12:07:47 +0900
Message-ID: <[email protected]> (raw)
In-Reply-To: <[email protected]>
References: <[email protected]>
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On Oct 13, 2005, at 11:52 , Tom Lane wrote:

> Jeff Williams <[email protected]> writes:
>
>> Thanks. Triggers was my first thought, but chapter 35 on Triggers  
>> didn't
>> really indicate a way I could do this easily and scared me with a  
>> lot of
>> c code.
>>
>
> Yeah.  This is a documentation issue that's bothered me for awhile.
> The problem is that we treat the PL languages as add-ons and therefore
> the documentation of the "core" system shouldn't rely on them ... but
> that leaves us presenting C-code triggers as the only examples in
> chapter 35.  There is a paragraph in there suggesting you go look at
> the PL languages first, but obviously it's not getting the job done.

I think examples in PL/pgSQL would perhaps be most appropriate, as  
it's a PostgreSQL-specific language, arguably easy to read, and a PL  
that doesn't rely on any external dependencies, so it should be  
relatively easy for people to install it if they want. (IIRC, there's  
even been discussion in the past of whether or not PL/pgSQL should be  
installed by default.)


Michael Glaesemann
grzm myrealbox com

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