Re: date_trunct() and start of week

Hi,

not all to zero : "that are less significant than the selected one set
to zero (or one, for day and month)"

so

select extract('dow' from date_trunc('week', current_date))

returns always 1 (i think accordingly to ISO-8601)

see
http://www.postgresql.org/docs/8.1/static/functions-datetime.html#FUNCTIONS-DATETIME-EXTRACT
dow:
"The day of the week (0 - 6; Sunday is 0)"

regards
Thomas



Thomas Kellerer schrieb:
>
> Hmm, I don't see that in there.
> It just states that the field will be set to "zero". But does zero
> refer to a Monday or a Sunday?
> Regards
> Thomas
>
>