"Simon Riggs" <simon@2ndquadrant.com> writes:
> It seems possible to vary both BLCKSZ and XLOGSEGSZ rather than have
> them set within pg_config_manual.
The work required for this is much larger than you make it out to be,
and zero evidence has been offered for any benefit. I have not heard of
anyone bothering to use a custom BLCKSZ since we added TOAST to get rid
of the row-length limitation ...
regards, tom lane