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jdbc, pgsql6.5.1, large objects

From: John David Garza <garza(at)cjas(dot)org>
To: pgsql-interfaces(at)postgresql(dot)org
Subject: jdbc, pgsql6.5.1, large objects
Date: 1999-07-30 01:30:34
Message-ID: Pine.BSF.4.10.9907292129190.46423-100000@localhost (view raw or whole thread)
Lists: pgsql-interfaces
Hey folks,

Let's see, my admin just upgraded postgresql to 6.5.1 and now it looks
like FastPath isn't working. More specifically, after creating and opening
a large object using the LargeObjectManager class, any other access
attempts throws the following:

FastPath call returned ERROR:  lo_write: invalid large obj descriptor (0)
FastPath call returned ERROR:  lo_write: invalid large obj descriptor (0)
        at postgresql.fastpath.Fastpath.fastpath(
        at postgresql.fastpath.Fastpath.fastpath(
        at postgresql.largeobject.LargeObject.write(
        at postgresql.largeobject.LargeObject.write(
        at uploadImage.main(

In this case, line 87 in uploadImage is:
85      LargeObject pict =;
86      while ((, 0, 256)) > 0) {
87              pict.write(buf, 0, s);}

Before upgrading to 6.5.1, this program worked fine. Calls to tell, size,
read all cause the same type of exceptions.

Any help would be appreciated.

Other info: FreeBSD 3.2, jdk1.1.8

John David Garza


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