From: Rob Sargent <robjsargent@gmail.com>
To: Gary Chambers <gwchamb@gmail.com>
Cc: pgsql-sql@postgresql.org
Subject: Re: Join Advice and Assistance
Date: Mon, 22 Feb 2010 10:05:36 -0700
Message-ID: <4B82B960.3060901@gmail.com> (raw)
In-Reply-To: <302670f21002220751h6cc363fiad449314d961fcc0@mail.gmail.com>
References: <302670f21002211525r65caee9et396c374a3cd64b0d@mail.gmail.com>
<4B8211B2.6020406@gmail.com>
<302670f21002220751h6cc363fiad449314d961fcc0@mail.gmail.com>
My mistake. Should answer these things late at night.
I think you will find that arrays will be your friend[s]
On 02/22/2010 08:51 AM, Gary Chambers wrote:
> Rob,
>
> Thanks for the reply...
>
>> If you want records for user without email addresses you will need an outer
>> join on user_emailaddrs
>>
>> /* untested */
>> select u.userId, u.lname, u.lastname ,m.startdate, a.emailaddr
>> from users u
>> join usermetas m on u.userid = m.userid
>> left join user_emailaddrs a on m.userid = a.userid
>
> My question was related more toward eliminating the query returning a
> record for each record in the one-to-many table. I see now that I'm
> going to have to aggregate the e-mail addresses in order to return a
> single row. Thanks again.
>
> -- Gary Chambers
>
> /* Nothing fancy and nothing Microsoft! */
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Reply to all the recipients using the --to and --cc options:
reply via email
To: pgsql-sql@postgresql.org
Cc: robjsargent@gmail.com, gwchamb@gmail.com
Subject: Re: Join Advice and Assistance
In-Reply-To: <4B82B960.3060901@gmail.com>
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
This inbox is served by DDX for PostgreSQL; see mirroring instructions
for how to clone and mirror all data and code used for this inbox