converting a specified year and week into a date

hi guys,
i was just wondering if it was at all possible to turn a year and a given
week number into a real date just using postgresql commands?


e.g. if i have year = 2004 and week = 1,
    can i turn that into say 2004-01-01 (so that the specified
    date is the one for the beginning of week 1 in the year 2004


thanks
vanessa  :)

--
View this message in context:
http://www.nabble.com/converting-a-specified-year-and-week-into-a-date-tf3223753.html#a8954235
Sent from the PostgreSQL - general mailing list archive at Nabble.com.