agora inbox for postgres@postgres.berkeley.edu
help / color / mirror / Atom feedFrom: Lee Siu Hoi (BACS4 Class A) <cs400514@comp.hkp.hk>
To: postgres@postgres.Berkeley.EDU
Date: Mon, 2 May 94 07:00:30 HKT
Message-ID: <9405012300.AA13088@csun02.COMP.HKP.HK> (raw)
Hi all,
I have problem in using aggregate functions:
create test (i = int4, .... ) \g
append test (i = 1, ... ) \g
append test (i = 2, ... ) \g
.
.
When I want to retrieve the instance that have the smallest i value:
retrieve (t.all) from t in test where t.i = int4min {test.i} \g
The parser reports error near the "{" symbol.
It is legal to use aggregate function in the where statement?
If no, any other approach can do the similar thing?
I really need to make such queries.
Thanks in advance.
Any suggestion or hints will be appreciated.
Hoi
===============================================================================
To add/remove yourself from the POSTGRES mailing list: send mail with
the subject line ADD or DEL to "postgres-request@postgres.Berkeley.EDU"
If this fails, send mail to "post_questions@postgres.Berkeley.EDU" and
a human will deal with it. DO NOT post to the "postgres" mailing list.
===============================================================================
reply
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: postgres@postgres.berkeley.edu
Cc: cs400514@comp.hkp.hk
Subject: Re:
In-Reply-To: <9405012300.AA13088@csun02.COMP.HKP.HK>
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
This inbox is served by agora; see mirroring instructions
for how to clone and mirror all data and code used for this inbox