Re: EXTRACT Clarification - Mailing list pgsql-docs

From Kris Jurka
Subject Re: EXTRACT Clarification
Date
Msg-id Pine.BSO.4.56.0409290825020.14292@leary.csoft.net
Whole thread Raw
In response to EXTRACT Clarification  (Thomas F.O'Connell <tfo@sitening.com>)
Responses Re: EXTRACT Clarification  (Thomas F.O'Connell <tfo@sitening.com>)
List pgsql-docs

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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