On Monday 12 March 2001 03:24, Eric Marsden wrote: > I am trying to debug my socket-level interface to the backend, which > implements the 6.4 protocol. It works for general queries, but I have > a problem with large objects. > > lo_create and lo_unlink seem to work OK; I get an oid which looks ok > and there is a corresponding xinv??? file in the base/ directory. > lo_open returns 0 as a file descriptor. However, following up with one > of the other lo functions which take descriptor arguments (such as > lo_write or lo_tell) fails with > > ERROR: lo_tell: invalid large object descriptor (0) You should do ANY operations with LOs in transaction. > Looking at be-fsstubs.c it seems that this arises when cookies[fd] is > NULL. I don't know what this might come from: the lo_tell is sent > right after the lo_open, on the same connection. > > Running the sample lo program in C works, so I suppose the problem > must come from the bytes I'm sending. Any ideas what could cause this? > > > PostgreSQL 7.0.3 on sparc-sun-solaris2.5.1, compiled by gcc 2.95.2 -- Sincerely Yours, Denis Perchine ---------------------------------- E-Mail: [EMAIL PROTECTED] HomePage: http://www.perchine.com/dyp/ FidoNet: 2:5000/120.5 ---------------------------------- ---------------------------(end of broadcast)--------------------------- TIP 2: you can get off all lists at once with the unregister command (send "unregister YourEmailAddressHere" to [EMAIL PROTECTED])