MIME-Version: 1.0
From: Misa Simic <misa.simic@gmail.com>
Date: Fri, 16 Dec 2011 01:30:53 -0800
Message-ID: <-6224470694062641569@unknownmsgid>
Subject: Re: using a generated series in function
To: John Fabiani <johnf@jfcomputer.com>,
	"pgsql-sql@postgresql.org" <pgsql-sql@postgresql.org>
Content-Type: text/plain; charset=UTF-8

It is not totally clear to me what are u trying to do... But in second
query it seems there is missing "from"

It is as

SELECT week-date::date AS week-date WHERE week-date in (subquery which
have from)

So week-date column in main query does not exist..

Sent from my Windows Phone From: John Fabiani
Sent: 16 December 2011 05:16
To: pgsql-sql@postgresql.org
Subject: [SQL] using a generated series in function
Hi,

I am attempting (without success) use the generated series of dates that come
from:
select (cast(date_trunc('week', '2011-11-20'::date ) as date) + (i+6)) as
week_date from generate_series(0,84,7) i

in a function.
select function_name(integer, date);  -- function returns a numeric

This does NOT work:
select (function_name(303, week_date::date)) as week_date where week_date in
(select (cast(date_trunc('week', '2011-11-20'::date ) as date) + (i+6)) as
week_date from generate_series(0,84,7) i )

The error is:
ERROR:  column "week_date" does not exist
LINE 1: select (xchromasun._chromasun_getqtyordered(303, week_date::...

I hope I can do this?  What am I doing wrong?
Johnf


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