Albe Laurenz wrote: > Does the program work correctly despite the warnings? At least it seems so. I'm using it as email server without problems. > What API are you using (there is no EscapeBytea function in the C API)? It's the PQescapeBytea function from libpq. Note that i didn't write the program, so i don't know the code so well. > Exactly how does the bytea string constant look that you send to the server? For example (taken from the log and completed a bit): INSERT INTO ... (..., messageblk,blocksize, physmessage_id) VALUES (0,'SA\\304...') > Are there any other strings with backslashes in your statements? Don't know, probably yes. The backslashes are probably generated by the escape function. Greetings, Maarten Deprez