=?ISO-8859-2?Q?Dud=E1s_J=F3zsef?= <dj1999@xxxxxxxxxxx> writes: > I know that something doing wrong, but I can't find out what is it. Getting a stack trace from the point of the errfinish call would probably help narrow it down. One thing that's not clear is whether SPI_modifytuple itself is failing (have you checked all the *other* arguments you're passing it?) or whether it happens later. regards, tom lane