Re: Print b-tree tuples

I'm trying to print out the tuples in the b-tree nodes for analysis, but when iterate over more than the first entry of the tuples (scanKey++), I strangely get the error below on query execution:
ERROR:  relation "simpletest" does not exist
LINE 1: SELECT * FROM simpletest WHERE id = 50;

I was able to get around this by only printing byval attributes:

if (!itupdesc->attrs[i-1]->attbyval)
            break;

I would still like to know why my code screws up though. The relnames are not byval, but I should still be able to print the address, right?

Regards,
Samuel