X-Original-To: pgsql-interfaces@postgresql.org Received: from spampd.localdomain (postgresql.org [64.49.215.8]) by postgresql.org (Postfix) with ESMTP id 37830475C98 for ; Tue, 25 Mar 2003 09:00:50 -0500 (EST) Received: from fzkmail2.fzk.de (fzkmail2.fzk.de [141.52.27.52]) by postgresql.org (Postfix) with SMTP id 0BF97474E5C for ; Tue, 25 Mar 2003 09:00:49 -0500 (EST) Received: FROM resy5.fzk.de BY fzkmail2.fzk.de ; Tue Mar 25 15:00:51 2003 +0100 Received: œby rodos.fzk.de with ESMTP (8.8.6 (PHNE_17135)/8.7.1) id PAA18858; Tue, 25 Mar 2003 15:00:50 +0100 (MET) Message-ID: <3E806111.5929A731@rodos.fzk.de> Date: Tue, 25 Mar 2003 15:00:50 +0100 From: Christoph Haller X-Mailer: Mozilla 4.77 [en] (X11; U; HP-UX B.10.20 9000/780) X-Accept-Language: en MIME-Version: 1.0 To: pgsql-interfaces@postgresql.org Cc: wwest@csc.com Subject: Re: Interaction between Cursor and Transaction storage? Content-Type: text/plain; charset=iso-8859-2 Content-Transfer-Encoding: 7bit X-Spam-Status: No, hits=-3.7 required=5.0 tests=BAYES_20,QUOTE_TWICE_1 version=2.50 X-Spam-Level: X-Spam-Checker-Version: SpamAssassin 2.50 (1.173-2003-02-20-exp) X-Archive-Number: 200303/146 X-Sequence-Number: 3895 > > QUESTION 1: > > Should RO-APP be doing anything other than closing > the Cursors, to tell the Engine to just 'cleanup' when > RO-APP is about to close its fe-be session and exit? NO. > > QUESTION 2: > > Will an attempt by the RW-APP to do a commit or rollback > while the RO-APP is fetching through an open Cursor cause > RW-APP to wait until RO-APP closes the Cursor? NO. > > QUESTION 3: > > Will an attempt by the RO-APP to open a Cursor while > the RW-APP is performing a commit or rollback cause > RO-APP to wait until RW-APP finishes its commit/ > rollback? NO. > The answers are given to my best knowledge. If you prefer to be absolutely sure you should post your questions to the hackers list, as you've received no reply on this list within three days. Regards, Christoph