Thread: Problem with JDBC and Large Objects

I'm using the latest JDBC driver (8.1-407) with PostgreSQL 8.1.3 (on Windows) and PostgreSQL 8.1.4 (on Debian).  I've
searchedthe archives, and found several applicable thread that were never responded to or apparently resolved:<br
/><ul><li><aclass="moz-txt-link-freetext"
href="http://archives.postgresql.org/pgsql-bugs/2001-04/msg00216.php">http://archives.postgresql.org/pgsql-bugs/2001-04/msg00216.php</a><li><a
class="moz-txt-link-freetext"
href="http://mail-archive.objectweb.org/dods/2001-11/msg00007.html">http://mail-archive.objectweb.org/dods/2001-11/msg00007.html</a></ul>
I'musing JDBC to store (binary) files in a database, and have tried storing the content in a BYTEA column and using the
LargeObject API and storing a OID column in my table.  I am able to upload various files into the database, but when I
downloadthem the 0xFF characters in the uploaded files have all been stripped.  I've looked for a configuration
setting,but don't see anything of use.  (The database or client character encodings should not apply to binary
data.)<br/><br /> Any suggestions?  Is this a bug?  (If it is a bug, it seems hard to believe that nobody has run
acrossthis.)<br /><br /> Thanks in advance!<br /><br /> Randall<br /><br /><br /> 

Randall Hauch wrote:
> I'm using the latest JDBC driver (8.1-407) with PostgreSQL 8.1.3 (on
> Windows) and PostgreSQL 8.1.4 (on Debian).  I've searched the archives,
> and found several applicable thread that were never responded to or
> apparently resolved:
>
>     * http://archives.postgresql.org/pgsql-bugs/2001-04/msg00216.php
>     * http://mail-archive.objectweb.org/dods/2001-11/msg00007.html
>
> I'm using JDBC to store (binary) files in a database, and have tried
> storing the content in a BYTEA column and using the Large Object API and
> storing a OID column in my table.

So.. which one did you see the problem with, LOB or bytea?

> I am able to upload various files
> into the database, but when I download them the 0xFF characters in the
> uploaded files have all been stripped.  I've looked for a configuration
> setting, but don't see anything of use.  (The database or client
> character encodings should not apply to binary data.)

Weird. Do you have a testcase I can try?

-O