On Aug 3, 2004, at 7:23 PM, Achilleus Mantzios wrote:
now() returns the current UNIX (your running UNIX right?) timestamp which
in turn is
measured in seconds,miliseconds since the epoch.
i.e. 1970-01-01 00:00:00
I believe this is incorrect. I believe PostgreSQL uses its own timestamp datatype internally (which is, indeed, not as text in an easy-to-read form). On my machine (running cvs-head),
test=# select now();
now
-------------------------------
2004-08-03 20:27:18.822646+09
(1 row)which is definitely not seconds.milliseconds since epoch. You can use extract to get seconds.milliseconds from epoch, but I don't think this is how it's stored internally.
test=# select extract(epoch from now());
date_part
-----------------
1091532506.3222
(1 row)Just some additional trivia, current_timestamp is an SQL-spec compliant alias for now(), and might be a better choice if one is concerned with compatibility.
Michael Glaesemann grzm myrealbox com
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