From: Tom Lane <tgl@sss.pgh.pa.us>
To: Julian Scarfe <julian.scarfe@ntlworld.com>
Cc: Oliver Vecernik <vecernik@aon.at>
Cc: pgsql-sql@postgresql.org
Subject: Re: sum(time) problem
Date: Fri, 17 Jan 2003 10:03:04 -0500
Message-ID: <11792.1042815784@sss.pgh.pa.us> (raw)
In-Reply-To: <BA4DB1FB.204D0%julian.scarfe@ntlworld.com>
References: <BA4DB1FB.204D0%julian.scarfe@ntlworld.com>
Julian Scarfe <julian.scarfe@ntlworld.com> writes:
>> It seems I've chosen the wrong type. Or is there another solution?
> Correct diagnosis. You need the "interval" type, not the "time" type for
> your second field. Interval is a time difference between two timestamps,
> for example the time between the start and the finish of a race.
Right. "time" is intended for time-of-day values; so taking the sum
would be a nonsensical operation.
regards, tom lane
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To: pgsql-sql@postgresql.org
Cc: tgl@sss.pgh.pa.us, julian.scarfe@ntlworld.com, vecernik@aon.at
Subject: Re: sum(time) problem
In-Reply-To: <11792.1042815784@sss.pgh.pa.us>
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