Akash Garg <akash(dot)garg(at)gmail(dot)com> writes:
> I used oid2name to find the index files:
> 168807081
> 168807081.1
> 168807081.2
> 168807081.3
> 168807081.4
> Now how do I run the od command to find the block in question?
Rather than doing the math by hand, let dd do it:
dd bs=8k skip=41661 count=1 </path/to/indexfile | od -x
This assumes your PG was built with the default 8k block size, but
if it wasn't you'd presumably know that ...
regards, tom lane