Date: Mon, 16 Oct 2000 15:20:24 -0500
Message-Id: <200010162020.PAA16531@proxy.hddesign.com>
To: Gabriel Lopez <gabilm@dif.um.es>
Cc: pgsql-interfaces@postgresql.org
From: David Huttleston Jr <dhjr@hddesign.com>
Reply-To: dhjr@hddesign.com
Subject: Re: wrong documentation and others .....
In-Reply-To: <39EB2FE8.43259D92@dif.um.es>

Peter Mount's JDBC driver translates the query results from the postgresql
process to Java via the JDBC standard.  As I see it, the source of your problem
can be at several levels.

1) A bug in the program
2) A bug in the Solaris JVM
3) A problem with the JDBC driver
4) A problem with your postgresql config on the solaris

#1 seems unlikely since your program and mine work on linux but not on solaris
#2 seems unlikely since Solaris is the flagship for Sun's Java efforts
#3 is possible, but our programs _and_ JDBC work fine under linux
#4 is the only possibility we have not discussed.

  The first way to test if the solaris configuration of postgresql is the problem
is to test a query using an interface which is _not_ JDBC.  The simpliest, is
psql.  Test the large-object support using lo_import and lo_export from within
psql.  In the documentation, section IV (Interfaces)-- chapter 51 (Large Objects)
has a page called 'Built in registered functions'.  This page shows an example of how
to 'manually' store and retrieve a large-object which can be typed into the psql
interface and tested.
  If lo_import and lo_export work, but JDBC does _not_ work.  We should get Peter
Mount's direct attention.  I don't know if he's familiar with solaris, but might be
able to point you toward a solution based on your stack trace.
 Buena Suerte,
	Dave

On Mon, 16 Oct 2000 18:42:17 +0200, you wrote:
> David Huttleston Jr escribió:
> 
> > Hey Gabi,
> >         Have you manually tested this query in using the pqsl interface?  Perhaps
> > it is the backend having problems and not JDBC.
> >
> > Dave
> >
> 
>     What do you want to say?
>     I run your program. The problem in the postgresql?
> 
> 
> 
> --
> Gabriel López Millán
> Facultad de Informática -Universidad de Murcia
> 30001 Murcia - España (Spain)
> Telf: +34-968-364644 E-mail: gabilm@dif.um.es
> 
> 
>