2013-11-27 20:49 keltezéssel, Alvaro Herrera írta:
Boszormenyi Zoltan escribió:
If you consider all these:
- certain combinations of query and DECLARE stmt flags fail;
- adding NO SCROLL is breaking backward compatibility;
- the readahead code has to really know whether the cursor is
scrollable so it can behave just like the server;
then returning the SCROLL / NO SCROLL flag in the command tag is
not a bad solution in my view. In fact, this was the only workable
solution I could come up with to make it work reliably when neither
SCROLL nor NO SCROLL is specified by the application.
Would it work to have a function of some sort to which you give a cursor
name and it returns whether it is scrollable or not?
D'oh. Yes, that would also work. Thanks for the idea. :-)
I will implement it and adapt my remaining patches.
Best regards,
Zoltán Böszörményi
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Zoltán Böszörményi
Cybertec Schönig & Schönig GmbH
Gröhrmühlgasse 26
A-2700 Wiener Neustadt, Austria
Web: http://www.postgresql-support.de
http://www.postgresql.at/
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