Re: Dead Space Map

Bruce Momjian <pgman@candle.pha.pa.us> writes:
> One idea Simon and I had was to reuse heap rows where all indexed values
> in the old row and the new row were the same, meaning the heap value
> could be replaced without changing the indexes at all.  We thought this
> would be very useful for frequently-updated rows.  It could also be used
> if no index are on the table.

MVCC goes out the window, eh?  Not to mention transaction rollback ability?
        regards, tom lane