Re: libpq custom row processing

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От Federico Di Gregorio
Тема Re: libpq custom row processing
Дата
Msg-id 50211752.7010204@dndg.it
обсуждение исходный текст
Ответ на Re: libpq custom row processing  (Marko Kreen <markokr@gmail.com>)
Ответы Re: libpq custom row processing  (Magnus Hagander <magnus@hagander.net>)
Re: libpq custom row processing  (Marko Kreen <markokr@gmail.com>)
Список psycopg
On 07/08/12 15:14, Marko Kreen wrote:
> My point is that the behavior is not something completely new,
> that no-one has seen before.
>
> But it's different indeed from libpq default, so it's not something
> psycopg can convert to using unconditionally.  But as optional feature
> it should be quite useful.

I agree. As an opt-in feature would be quite useful for large datasets
but then, named cursors already cover that ground. Not that I am against
it, just I'd like to see why:

curs = conn.cursor(row_by_row=True)

would be better than:

curs = conn.cursor("row_by_row")

Is row by row faster than fetching from a named cursor? Does it add less
overhead. If that's the case then would be nice to have it as a feature
for optimizing queries returning large datasets.

federico

--
Federico Di Gregorio                         federico.digregorio@dndg.it
Studio Associato Di Nunzio e Di Gregorio                  http://dndg.it
 And anyone who yells "fork" deserves to get one stuck in them.
                                                          -- Dan Winship

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