I'd like to be able to convert between times specified in Unix timestamp
format and SQL datetime values without going through the slow and rather
error-prone process of converting to a human-readable date notation.

I see how to get a datetime value returned as a Unix timestamp:
	
	tgl=> select date_part('epoch', 'now'::datetime);
	date_part
	---------
	900355156
	(1 row)

But I don't see any way to supply a value in the form "900355156"
and have it get converted to datetime.  Is there a way to do that?

BTW, it seems like the standard data type 'timestamp' ought to be
good for this, but it isn't as far as I can tell ... it hasn't got
any working conversions to/from integer either.

			regards, tom lane

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• How do I store graphics in my tables? at 1998-07-13 20:02:27 from Dan Delaney

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