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Subject: Re: need some magic with generate_series()
From: jan zimmek <jan.zimmek@web.de>
In-Reply-To: <50FF0784.1070205@gmx.net>
Date: Tue, 22 Jan 2013 22:49:56 +0100
Cc: pgsql-sql@postgresql.org
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Message-Id: <1B56ACCA-3259-4AF6-9EBA-7045E261B18F@web.de>
References: <50FF0784.1070205@gmx.net>
To: Andreas <maps.on@gmx.net>
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Sender: pgsql-sql-owner@postgresql.org

hi andreas,

this might give you an idea how to generate series of dates (or other datat=
ypes):

select g, (current_date + (g||' month')::interval)::date from generate_seri=
es(1,12) g;

regards
jan

Am 22.01.2013 um 22:41 schrieb Andreas <maps.on@gmx.net>:

> Hi
> I need a series of month numbers like  201212, 201301 YYYYMM to join othe=
r sources against it.
>=20
> I've got a table that describes projects:
> projects ( id INT, project TEXT, startdate DATE )
>=20
> and some others that log events
> events( project_id INT, createdate DATE, ...)
>=20
> to show some statistics I have to count events and present it as a view w=
ith the project name and the month as YYYYMM starting with startdate of the=
 projects.
>=20
> My problem is that there probaply arent any events in a month but I still=
 need this line in the output.
> So somehow I need to have a select that generates:
>=20
> project 7,201211
> project 7,201212
> project 7,201301
>=20
> It'd be utterly cool to get this for every project in the projects table =
with one select.
>=20
> Is there hope?
>=20
>=20
> --=20
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--=20
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