From: Emi Lu <emilu@encs.concordia.ca>
To: pgsql-sql@postgresql.org
Subject: "select c1, method(c2) group by c1" returns all values of c2 for c1
Date: Tue, 08 Feb 2011 14:35:38 -0500
Message-ID: <4D519B0A.9040708@encs.concordia.ca> (raw)
Good afternoon,
Is there a method to retrieve the following results:
T1(c1 int, c2 varchar(128) )
---------------------------------
(1, val1);
(1, val2);
(1, val3);
(2, val1);
(3, val5);
(3, val6);
select c1, method(c2)
group by c1
returns:
============
1, "val1, val2, val3"
2, "val1"
3, "val5, val6"
Thanks a lot!
--
Lu Ying
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To: pgsql-sql@postgresql.org
Cc: emilu@encs.concordia.ca
Subject: Re: "select c1, method(c2) group by c1" returns all values of c2 for c1
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