Tom Lane wrote:
> Bruce Momjian <pgman(at)candle(dot)pha(dot)pa(dot)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?
If the old row is not visible to any transactions, why would it not work?
Bruce Momjian http://candle.pha.pa.us
SRA OSS, Inc. http://www.sraoss.com
+ If your life is a hard drive, Christ can be your backup. +
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