girish R G peetle wrote:
> PostgreSQL system function, pg_total_relation_size() doesn't include BLOB data size that is associated
> with the table.
>
> TAR dump restore fails if the BLOB data size associated with a table is more than 8GB. (Which is
> limitation of TAR format).
>
> I know we can switch to compressed dump format. But wanted to know if there a way to know true size of
> a table.
Not easily, because technically, large objects don't belong to a table.
You'd have to write your own that scans the table and adds the size of
all referenced large objects.
It can probably be done in one SELECT using lo_lseek.
Yours,
Laurenz Albe
