Greg Stark <[EMAIL PROTECTED]> writes:
> The plan Gavin Sherry and I were discussing at the Code Sprint was to store a
> single "most common xmin" xmin in the per-page special area. Then have a bit
> on each tuple indicating that the xmin isn't present in the tuple and instead
> to use the xmin from the page footer. Any tuples with other values of xmin
> would have to store that xmin normally.

This seems pretty unworkable --- anything that involves more than one
field layout for tuple headers is going to be a huge PITA.

                        regards, tom lane

---------------------------(end of broadcast)---------------------------
TIP 5: don't forget to increase your free space map settings

Reply via email to