pg.ddx.io  pgsql-sql@postgresql.org mailing list archive  
help / color / mirror / Atom feed
From: Ivan Sergio Borgonovo <mail@webthatworks.it>
To: pgsql-sql@postgresql.org
Subject: short-cutting if sum()>constant
Date: Tue, 22 Dec 2009 13:35:27 +0100
Message-ID: <20091222133527.3007bd96@dawn.webthatworks.it> (raw)

Hi,

I'd like to know if

select sum(qty) from t where status=37;

is > constant.

qty is always >0.

Is there a way to skip examining further rows and return a result
ASAP?


-- 
Ivan Sergio Borgonovo
http://www.webthatworks.it




view thread (23+ messages)  latest in thread

Message-ID: <20091222133527.3007bd96@dawn.webthatworks.it>
Permalink:  ../20091222133527.3007bd96@dawn.webthatworks.it/
Also on:    postgresql.org/message-id/20091222133527.3007bd96@dawn.webthatworks.it

 · 

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: pgsql-sql@postgresql.org
  Cc: mail@webthatworks.it
  Subject: Re: short-cutting if sum()>constant
  In-Reply-To: <20091222133527.3007bd96@dawn.webthatworks.it>

* 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