| From: | Rodrigo De León <rdeleonp(at)gmail(dot)com> | 
|---|---|
| To: | pgsql-sql(at)postgresql(dot)org, Joshua <joshua(at)joshuaneil(dot)com> | 
| Subject: | Re: current_date / datetime stuff | 
| Date: | 2007-06-04 16:25:51 | 
| Message-ID: | a55915760706040925n5c8286f9t7e11989ca22559ab@mail.gmail.com | 
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| Thread: | |
| Lists: | pgsql-sql | 
On 6/4/07, Joshua <joshua(at)joshuaneil(dot)com> wrote:
> Hello,
>
> I was hoping someone here may be able to help me out with this one:
>
> Is there anything similiar to:     SELECT current_date;
> that will return the date of the first Monday of the month?
>
> Please let me know.
>
> Thanks,
> Joshua
select (
  select
  case i <= dow
    when true  then d + (i - dow + 7)
    when false then d + (i - dow)
  end
  from (
    select d
    , extract(dow from d)::int as dow
    , 1 as i -- monday
    from (
      select date_trunc('month',current_date)::date - 1 as d
    ) q
  ) q2
) as first_monday_of_the_month
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