Re: Selecting timestamp from Database

On Mon, Apr 8, 2013 at 3:15 PM, Richard Harley <richard@scholarpack.com> wrote:
>
> That returns nothings also. But I have spied the problem now:
>
> select  ATTENDANCE.timestamp::text from attendance order by timestamp desc
> limit 1
>
> return the actual timestamp: 2013-04-08 12:42:40.089952
>
> So the theory I'm wondering about is that the stored data in fact
> contains (some values with) fractional seconds, but Richard's
> client-side software isn't bothering to show those, misleading him
> into entering values that don't actually match the stored data.
> Looking at the table directly with psql would prove it one way
> or the other.
>
> This is it. It was the psycopg adapter. My bad!!

This message can be misread as psycopg dropping the fractional part of
the timestamp, which is not the case:

    >>> cur.execute("select '2013-04-08 12:42:40.089952'::timestamp")
    >>> cur.fetchone()[0]
    datetime.datetime(2013, 4, 8, 12, 42, 40, 89952)

Just FYI.

-- Daniele