Jaime Silvela <JSilvela@xxxxxxxx> writes: > I'm seeing these messages > ERROR: unexpected data beyond EOF in block 4506 of relation > "coverage_test_val" > HINT: This has been seen to occur with buggy kernels; consider updating > your system. So what kernel are you running, on what hardware? Is the problem reproducible if you drop the target database and start over? The known cases of this problem have been under heavy concurrent update load (multiple sessions trying to extend a table concurrently). I don't entirely see how you could get it if the COPY is the only thing writing that table ... regards, tom lane