Re: sqlexec problem on large join
Posted in 1999
anand_gupta@my-deja.com wrote:
> On a sql query which does a join across the two database
> instance I get following error message,
>
> Exception: Invalid memory address (dce / thd)
> 408: Invalid message type received from sqlexec process.>
> The informix version running the two database instances are
> 5.02 and 4.11.
>
> The query involves large amount of data. How should I go
> about investigating this problem.
Well, it shouldn't happen. However, both versions are very archaic
and you should probably start by upgrading to 5.10 for both machines.
I'm not sure that there's very much else you can do, to be quite
honest. You could demonstrate that it is a networking problem (or
not) by copying one table to the other database and then running the
local-only query. Where you go after that is far from obvious.
--
Jonathan Leffler (jleffler@informix.com, jleffler@earthlink.net)
Guardian of DBD::Informix v0.60 -- see http://www.perl.com/CPAN
#include <disclaimer.h>