>
>
> That part sounds more like the table row is corrupted :-(. If you
> aren't in a position to restore the whole table from backup, you'll
> need to try to identify and wipe out the broken row. Usually zeroing
> its whole page is the easiest way to do this, though you'll want to
> see what else is on that page first. Check the PG archives for
> discussions of recovering from corrupted-data scenarios.
>
> regards, tom lane
>
Tom,
how do I erase just one block of the table file?