RE: wrong documentation and others ..... - Mailing list pgsql-interfaces

I've some experience of Solaris, and now I'm back at work I've got access to
a few Solaris boxes.

Anyhow, catching up with this thread:

* the fail is in the loop reading the result:       sometime a 'E' element is return after a 'Z'

This is a protocol problem, and it would be useful to know if it happens
outside of jdbc. psql won't do in this case, as lo_import() runs locally not
over the network.

* I've read in some Java Usenet groups that class files are not as Write-Once-Read-Everywhere as Sun would like us to
believe.

This is true to a point. It depends on how pure the javac implementation is,
and how pure the java source is. I've tried to keep the JDBC source as pure
as possible, although I can only test it out under Linux & Windows, but it
should be fine with Solaris. It would be interesting to see if there are any
differences between postgresql.jar compiled under Linux & Solaris.

* FATAL 1:  my bits moved right off the end of the world!           Recreate index pg_attribute_relid_attnam_index.

This is internal to postgresql. It's one of my favourite error messages,
although I've never had it myself, so I've not had to fix it before.

* InputStream is = rs.getBinaryInputStream(1); 
* // use the stream in some way here 
* is.close(); 

This should work, as it reads the entire LargeObject into a
ByteArrayInputStream(), which is what's actually returned. However, the next
release should return a LargeObjectInputStream object, which reads from the
backend as and when required. This should be done by the weekend.

Peter

-- 
Peter Mount
Enterprise Support Officer, Maidstone Borough Council
Email: petermount@maidstone.gov.uk
WWW: http://www.maidstone.gov.uk
All views expressed within this email are not the views of Maidstone Borough
Council


-----Original Message-----
From: David Huttleston Jr [mailto:dhjr@hddesign.com]
Sent: Monday, October 16, 2000 9:20 PM
To: Gabriel Lopez
Cc: pgsql-interfaces@postgresql.org
Subject: Re: [INTERFACES] wrong documentation and others .....


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
> 
> 
>