Unix dateformat ?

hi!

correct me, but is this possible postgresql doesn't contains any function
to convert date/datetime format to unix timestamp format?

in mysql I can do it with:

mysql> select unix_timestamp( now() ) as stamp;
+-----------+
| stamp |
+-----------+
| 913710262 |
+-----------+

before I make any function in 'c', please if you know some solution inform
me,

thanks,
regards
Redax

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