On Fri, Oct 13, 2017 at 5:25 AM, Kuntal Ghosh
<kuntalghosh.2...@gmail.com> wrote:
> For some other
> storage engine, if we maintain the older version in different storage,
> undo for example, and don't require a new index entry, should we still
> call it HOT-chain?

I would say, emphatically, no.  HOT is a creature of the existing
heap.  If it's creeping into storage APIs they are not really
abstracted from what we have currently.

Robert Haas
EnterpriseDB: http://www.enterprisedb.com
The Enterprise PostgreSQL Company

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