On Thu, Sep 11, 2014 at 02:54:36PM -0300, Arthur Silva wrote: > Indeed I don't know any other architectures that this would be at an > option. So if this ever moves forward it must be turned on at compile time > for x86-64 only. I wonder how the Mysql handle their rows even on those > architectures as their storage format is completely packed. > > If we just reduced the alignment requirements when laying out columns in > the rows and indexes by reducing/removing padding -- typalign, it'd be > enough gain in my (humble) opinion. > > If you think alignment is not an issue you can see saving everywhere, which > is kinda insane... > > I'm unsure how this equates in patch complexity, but judging by the > reactions so far I'm assuming a lot.
If the column order in the table was independent of the physical layout, it would be possible to order columns to reduce the padding needed. Not my suggestion, just repeating a valid comment from earlier in the thread. Regards, Ken -- Sent via pgsql-hackers mailing list (pgsql-hackers@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-hackers
