Re: missing chunk number 497 for toast value 504723663

"Utsav Turray" <utsav.turray@newgen.co.in> writes:
> I am using postgres  7.3.2  on RHEL 4.0.

Egad.

> Secondly what are probable  reasons behind corruption and what can we do to
> prevent this error.

Update.  Whatever reasons you might have for running 7.3.2 are bad ones.

            regards, tom lane