Re: using a generated series in function

From: Misa Simic <misa(dot)simic(at)gmail(dot)com>
To: John Fabiani <johnf(at)jfcomputer(dot)com>, "pgsql-sql(at)postgresql(dot)org" <pgsql-sql(at)postgresql(dot)org>
Subject: Re: using a generated series in function
Date: 2011-12-16 09:30:53
Message-ID: -6224470694062641569@unknownmsgid
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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(at)postgresql(dot)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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