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Date: Sat, 3 Dec 2005 11:15:15 -0700
From: Michael Fuhr <mike@fuhr.org>
To: Theodore Petrosky <tedpet5@yahoo.com>
Cc: postgres SQL <pgsql-sql@postgresql.org>
Subject: Re: question using 'between' in a sql query
Message-ID: <20051203181515.GA12719@winnie.fuhr.org>
References: <20051203175416.31456.qmail@web31712.mail.mud.yahoo.com>
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On Sat, Dec 03, 2005 at 09:54:16AM -0800, Theodore Petrosky wrote:
> if 'between' is inclusive of the start and end dates why doesn't
> this query result in all the rows on '11/20/2005'?

EXPLAIN shows what happens when you compare a date against a timestamp:

Filter: ((insertdate >= '2005-11-20 00:00:00-08'::timestamp with time zone)
     AND (insertdate <= '2005-11-20 00:00:00-08'::timestamp with time zone))

One way around this is to cast the timestamp column to date:

SELECT employeecode
FROM mytable
WHERE insertdate::date BETWEEN '11/20/2005' AND '11/20/2005';

-- 
Michael Fuhr