Hans-J|rgen Schvnig <[EMAIL PROTECTED]> wrote: > 64-bit XIDs seem to be an overkill - the only practical impact I can see > is an even larger tuple header (this can be an issue on large boxes too > - at least compared to Oracle).
I agreed, too. The changes of XIDs cannot be ignored because the overhead will be 32bytes per tuple. Avoiding overheads, can XIDs/CIDs be different bit length? For example, can XIDs/CIDs be changed to 48/16-bit or 40/24-bit? --- ITAGAKI Takahiro NTT Cyber Space Laboratories ---------------------------(end of broadcast)--------------------------- TIP 8: explain analyze is your friend
