| 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: | 495B55AF.6040808@enterprisedb.com |
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| 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
EnterpriseDB http://www.enterprisedb.com
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