Re: Convert "epoch" to timestamp

From: Thomas Lockhart <lockhart(at)fourpalms(dot)org>
To: Jeff Eckermann <jeff_eckermann(at)yahoo(dot)com>
Cc: pgsql-general(at)postgresql(dot)org
Subject: Re: Convert "epoch" to timestamp
Date: 2002-04-23 15:04:20
Message-ID: 3CC577F4.BFC60907@fourpalms.org
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...
> Can I rely on this continuing to work? Apparently
> not, because the docs say (wrt "abstime" and
> "reltime"): "Any or all of these internal types might
> disappear in a future release."

Right. But it won't disappear from the version you are running ;)

The following also works:

lockhart=# select timestamp without time zone 'today',
lockhart=> timestamp without time zone '1970-01-01'
lockhart=> + cast('1019520000' as interval);
timestamp | ?column?
---------------------+---------------------
2002-04-23 00:00:00 | 2002-04-23 00:00:00

I'm not sure what other features for integer->timestamp conversions may
be available in the future, but the above conforms to SQL9x standards so
is likely to be a good choice...

- Thomas

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