[GENERAL] postgesql-7.3.3 lo_create/lo_open fails

[Colm Dobbs]

Hi Guys,

I'm currenlty involved in a port of our gateway code from a Solaris 8 
environment to a HP-UX11.11 incorporating postgresql-7.3.3. We're having 
some problems with creation and opening of large objects and was hoping 
that you may be able to shed some light on them.

I extracted the LO code into the test program as below and am able to 
recreate the problems:

int
main(
        int argc,
        char * argv[]
)
{
        char chBytes[] = "FILLER";
        int iLength = strlen(chBytes);
    char * chTempDB = NULL;
    chTempDB = getenv ("CMN_DBNAME");
    char *chTempUserName=NULL;
    chTempUserName = getenv ("CMN_DBUSERNAME");
	PGconn * conn = PQsetdbLogin(NULL, NULL, NULL, NULL, chTempDB, 
chTempUserName, NULL);

        /*
         * check to see that the backend connection was successfully made
         */
        if (PQstatus(conn) == CONNECTION_BAD)
        {
                cout << "Large object connection is bad " << endl;
        }
        PGresult   *    res = PQexec(conn, "begin");
        PQclear(res);
        Oid lobjId = lo_creat(conn, INV_READ|INV_WRITE);
        if (lobjId != -1)
        {
                cout << "Large object ID created :" << lobjId << endl;
                int lobj_fd = lo_open(conn, lobjId, INV_WRITE);
                cout << "Large object file descriptor :" << lobj_fd << endl;
                if (lobj_fd != -1)
                {
                        // write the large object
                        int nbytes_out = lo_write(conn, lobj_fd, chBytes, iLength);
                        cout << "Large object written - no of bytes :" << nbytes_out 
<< endl;
                        (void) lo_close(conn, lobj_fd);
                }
        }
        
        res = PQexec(conn, "end");
        PQclear(res);
        PQfinish(conn);
}
all worked fine on the Solaris box but on the HP the lo_creat returns 0 
for the oid - subsequently lo_open returns -1 when an attempt is made to 
open the object.

The configuration used to install postgresql-7.3.3 on the HP environment 
is as follows:

configure CC=/bin/cc AR=/bin/ar CFLAGS=+DA2.0W --without-readline 
--without-zlib

Has anyone come across this problem ? Any help on this would be much 
appreciated

Thanks in advance

Colm

--
**************************************************************
* Colm Dobbs                      Email: [EMAIL PROTECTED]  *
* Software Engineer               Web:   www.aepona.com      *
* Aepona LTD,Interpoint Building, Phone: +44 (0)2890 269186  *
* 20-24 York Street, Belfast      Fax:   +44 (0)2890 269111  *
* BT15 1AQ N.Ireland                                         *
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