Zdenek,
> Unfortunately, this approach does not work between layout 3 and 4. It
> works only for heap on platfrom with maxallign=4.
>
> The main problem is that PageHeader has been extended to 24 bytes and it
> requires reindexing, TOAST chunk resizing, converted tuples does not fit
> on page on platform where maxallign=8.
>
> I'm now working on offline conversion method.
Hmmm. I thought we determined earlier that the use case for *offline*
binary conversion was rather limited. It would have to be 10x faster than
dump/reload to be worthwhile. Do you think this is possible?
--
--Josh
Josh Berkus
PostgreSQL @ Sun
San Francisco