Pavan Deolasee wrote:
Heikki Linnakangas wrote:
 > Pavan Deolasee wrote:
> We would only need the extra byte in HOT-updated tuples. Alternatively, we could use the bits we have free in infomask2. There's currently 5 bits free, using just 2 or 3 of those would get us quite far. Or just one, which would be the Tom's suggestion of only using HOT for tables with a single index.

We've already used three of those, two for tracking HEAP_ONLY
and HOT_UPDATED tuples and one for tracking fragmented tuple.

HEAP_ONLY_TUPLE would go away in favor of the per-index bits. So we have bits available for three indexes.

  Heikki Linnakangas

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