On Mon, Aug 8, 2016 at 06:34:46PM +0530, Amit Kapila wrote:
> I think here expensive part would be recheck for the cases where the
> index value is changed to a different value (value which doesn't exist
> in WARM chain). You anyway have to add the new entry (key,TID) in
> index, but each time traversing the WARM chain would be an additional
> effort. For cases, where there are just two index entries and one
> them is being updated, it might regress as compare to what we do now.
Yes, I think the all-increment or all-decrement WARM chain is going to
be the right approach.
-- Bruce Momjian <bruce@momjian.us> http://momjian.us EnterpriseDB
http://enterprisedb.com
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