Re: [HACKERS] Patch: Write Amplification Reduction Method (WARM)

Bruce Momjian wrote:

> As I remember, WARM only allows
> a single index-column change in the chain.  Why are you seeing such a
> large performance improvement?  I would have thought it would be that
> high if we allowed an unlimited number of index changes in the chain.

The second update in a chain creates another non-warm-updated tuple, so
the third update can be a warm update again, and so on.

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Álvaro Herrera                https://www.2ndQuadrant.com/
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