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Re: TODO items for window functions

From: Heikki Linnakangas <heikki(dot)linnakangas(at)enterprisedb(dot)com>
To: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
Cc: Robert Haas <robertmhaas(at)gmail(dot)com>, Andrew Dunstan <andrew(at)dunslane(dot)net>, David Fetter <david(at)fetter(dot)org>, Hitoshi Harada <umi(dot)tanuki(at)gmail(dot)com>, pgsql-hackers(at)postgresql(dot)org
Subject: Re: TODO items for window functions
Date: 2008-12-31 11:21:19
Message-ID: (view raw, whole thread or download thread mbox)
Lists: pgsql-hackers
Tom Lane wrote:
> I am not thrilled about inventing a new column for this, but how about
> a display like so:
> regression=# \df nth_value
>                         List of functions
>    Schema   |   Name    | Result data type |       Argument data types 
> ------------+-----------+------------------+---------------------------------
>  pg_catalog | nth_value | anyelement       | anyelement, integer OVER window
> or some other addition that only shows up when needed.

That looks like "OVER window" is associated with the "integer", like 
DEFAULT. I don't have any better suggestions, though.

   Heikki Linnakangas

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