Re: how to add seconds to a TimestampTz

From: Alvaro Herrera <alvherre(at)commandprompt(dot)com>
To: Hackers <pgsql-hackers(at)postgresql(dot)org>
Subject: Re: how to add seconds to a TimestampTz
Date: 2007-03-20 13:29:38
Message-ID: 20070320132938.GR24234@alvh.no-ip.org
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Alvaro Herrera wrote:
> Is there a better way than going to time_t and back? I am currently
> using this:
>
> db->next_worker =
> time_t_to_timestamptz(timestamptz_to_time_t(current_time) +
> autovacuum_naptime);
>
> (db->next_worker is a TimestampTz, as is current_time.
> autovacuum_naptime is integer for a number of seconds)

For the archives, I just discovered on timestamp.h this macro to help:

avdb->ad_next_worker =
TimestampTzPlusMilliseconds(now, naptime_secs * 1000);

This is a lot simpler and faster ...

--
Alvaro Herrera http://www.CommandPrompt.com/
PostgreSQL Replication, Consulting, Custom Development, 24x7 support

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