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From: Thomas F.O'Connell <[email protected]>
To: Kris Jurka <[email protected]>
Cc: Stephan Szabo <[email protected]>
Cc: [email protected]
Subject: Re: EXTRACT Clarification
Date: Wed, 29 Sep 2004 09:34:11 -0400
Message-ID: <[email protected]> (raw)
In-Reply-To: <[email protected]>
References: <[email protected]>
	<[email protected]>
	<[email protected]>
	<[email protected]>

It seems like it would be worth noting these (and any others) in the 
docs in some way. Is there a way for someone without a copy of the spec 
to be aware of which are functions and which are not, otherwise?

-tfo

On Sep 29, 2004, at 9:25 AM, Kris Jurka wrote:

> On Wed, 29 Sep 2004, Thomas F.O'Connell wrote:
>
>> Note: EXTRACT is not a true function. SQL defines it as an expression
>> that happens to look similar to a function call.
>>
>> Also, are there other expressions that fall into this category? I 
>> don't
>> know the spec well enough to know.
>
> At least COALESCE and NULLIF are not functions.
>
> Kris Jurka

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