Re: using a generated series in function - Mailing list pgsql-sql

From Misa Simic
Subject Re: using a generated series in function
Date
Msg-id -6224470694062641569@iso-8859-1msgid
Whole thread Raw
In response to using a generated series in function  (John Fabiani <johnf@jfcomputer.com>)
List pgsql-sql
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




-- 
Sent via pgsql-sql mailing list (pgsql-sql@postgresql.org)
To make changes to your subscription:
http://www.postgresql.org/mailpref/pgsql-sql


pgsql-sql by date:

Previous
From: Adrian Klaver
Date:
Subject: Re: using a generated series in function
Next
From: Stefan Weiss
Date:
Subject: Column "..." does not exist (view + union)