Thanks for all the help and thought to our problem.
Jonah H. Harris wrote:
David has stated that the index to heap visibility check is slowing
him down, so what are the possible options:
- Visibility in indexes (-hackers archives cover the pros/cons)
- True organized heaps
- Block level
Tom Lane wrote:
What sort of problems are you dealing with exactly? There has been
some discussion of changes that would improve certain scenarios. For
instance it might be plausible to do joins using index information and
only go back to the heap for entries that appear to pass the join
of concurrent updates on the page level.
Thanks for any thoughts on this, I know this is a perennial topic, but
we are seriously considering contributing either code or money to the
solution of this problem.
David Scott
Applied Technical Systems, Inc.
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