From: Joost Kraaijeveld <J.Kraaijeveld@Askesis.nl>
To: Pgsql-sql@postgresql.org <Pgsql-sql@postgresql.org>
Subject: What should this query match?
Date: Wed, 14 Sep 2005 11:54:17 +0200
Message-ID: <1126691657.3675.5.camel@Panoramix> (raw)
Hi,
Should the follwing query match a record with just "Jan" in the column
(there are no nulls in the column and there are 2 records with only
"Jan" in it) ?
SELECT COUNT(*) FROM customers
WHERE lower(lastName) < lower('Jan%')
If so, and if the result of the previous question is "144660", should
the next query display "Jan"?
SELECT lastname FROM prototype.customers
ORDER BY lower(lastname)
LIMIT 1 OFFSET 144600
Why do the following queries return the same count (may be related to
the first question)
SELECT COUNT(*) FROM customers
WHERE lower(lastName) < lower('Jan%')
SELECT COUNT(*) FROM customers
WHERE lower(lastName) <= lower('Jan%')
TIA
--
Groeten,
Joost Kraaijeveld
Askesis B.V.
Molukkenstraat 14
6524NB Nijmegen
tel: 024-3888063 / 06-51855277
fax: 024-3608416
e-mail: J.Kraaijeveld@Askesis.nl
web: www.askesis.nl
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To: pgsql-sql@postgresql.org
Cc: J.Kraaijeveld@Askesis.nl
Subject: Re: What should this query match?
In-Reply-To: <1126691657.3675.5.camel@Panoramix>
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