From: Alvaro Herrera <alvherre@commandprompt.com>
To: David Rysdam <drysdam@ll.mit.edu>
Cc: pgsql-interfaces@postgresql.org
Subject: Re: Not clear on what PQgetResult does
Date: Thu, 17 Nov 2005 18:16:35 -0300
Message-ID: <20051117211635.GD10976@surnet.cl> (raw)
In-Reply-To: <437CEB4E.5040402@ll.mit.edu>
References: <437CD359.5080908@ll.mit.edu>
<451.1132256298@sss.pgh.pa.us>
<437CE1B0.3040001@ll.mit.edu>
<437CEAC2.6050001@commandprompt.com>
<437CEB4E.5040402@ll.mit.edu>
David Rysdam wrote:
> Joshua D. Drake wrote:
>
> >>>It isn't. You can use it in an asynchronous client, but the way you do
> >>>that is by not calling it until PQisBusy says you can (which means the
> >>>whole result has arrived, and you're just calling PQgetResult to get
> >>>hold of it).
> >>>
> >>So there's no way to have libpq return partial results before they
> >>are all ready?
> >>
> >>If I may, I would like to express some degree of incredulity. Even
> >>the version of Sybase I'm using does this right and it's from 1997!
> >
> >I am sure we would welcome a patch ;))
>
> To be honest, this is almost enough to drive me away from PG.
If you are in need of partial results you may as well use a cursor and
fetch from it, a bunch at a time.
> Or are there underlying server reasons why this won't work?
This topic was discussed four days ago I think ... look for a thread
with subject "Incremental results from libpq" on the archives of this
list.
--
Alvaro Herrera http://www.CommandPrompt.com/
PostgreSQL Replication, Consulting, Custom Development, 24x7 support
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To: pgsql-interfaces@postgresql.org
Cc: alvherre@commandprompt.com, drysdam@ll.mit.edu
Subject: Re: Not clear on what PQgetResult does
In-Reply-To: <20051117211635.GD10976@surnet.cl>
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