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Re: Object-relational features

From: Bruno Wolff III <bruno(at)wolff(dot)to>
To: Yasir Malik <ymalik(at)cs(dot)stevens-tech(dot)edu>
Cc: John DeSoi <jd(at)icx(dot)net>, PostgreSQL <pgsql-sql(at)postgresql(dot)org>
Subject: Re: Object-relational features
Date: 2004-03-15 15:07:39
Message-ID: 20040315150739.GA26968@wolff.to (view raw or flat)
Thread:
Lists: pgsql-sql
On Mon, Mar 15, 2004 at 09:06:39 -0500,
  Yasir Malik <ymalik(at)cs(dot)stevens-tech(dot)edu> wrote:
> Dr. DeSoi
> Thanks for your reply.
> What is an "immutable strict" and what is an "internal" language?

"immutable" means the function will ALWAYS return the same value when
called with the same arguments. "strict" means that the function will
return NULL if any of its arguments are NULL.

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